| 单词 | mammal |
| 释义 | DEFINITIVE EXAMPLES 权威例句〔ALL/EVERYTHING〕All mammals are warm-blooded. 所有哺乳动物都是温血动物。朗文写作活用〔AND/ALSO〕Several rare South American mammals escaped from the zoo, not to mention a three-metre-long python. 几只南美珍稀哺乳动物从动物园逃走了，更糟的是还有一条3米长的蟒蛇也逃走了。朗文写作活用〔admirable〕It is a large mammal, 6-7 feet tall, admirable for desert terrain.这是一种巨大的哺乳动物,身高6至7英尺,最适宜在沙漠地区活动。英汉大词典〔alpaca〕The silky wool of this mammal.羊驼毛：这种哺乳动物丝一般的毛美国传统〔amniote〕Any of a group of vertebrates that have an amnion during embryonic development, including reptiles, birds, and mammals.脊椎动物，羊膜动物：任一种在胚胎发育期间有羊膜的脊椎动物，包括爬行动物、鸟类和哺乳动物美国传统〔anestrus〕An interval of sexual inactivity between two periods of estrus in mammals that breed cyclically.非求偶期，不动情期：周期繁殖的哺乳动物在两个求偶期之间的不动情期美国传统〔animality〕Mammals are at the top of the gradations of animality.哺乳动物是动物界最高级的。文馨英汉〔animal〕An animal organism other than a human being, especially a mammal.兽，牲畜：不包括人在内的动物，尤指哺乳动物美国传统〔animal〕Fish, birds, insects, reptiles, mammals, and human beings are all animals.鱼、鸟、昆虫、爬行动物、哺乳动物以及人类都是动物。韦氏高阶〔animal〕Humans, insects, reptiles, birds, and mammals are all animals.人、昆虫、爬行动物、鸟类和哺乳动物都是动物。剑桥高阶〔antelope〕Any of various swift-running ruminant mammals of the family Bovidae, native to Africa and Asia and having long horns and a slender build.羚羊：一种奔跑速度极快的反刍类羚羊科哺乳动物，产于非洲和亚洲，体形纤细有长角美国传统〔appear〕When did mammals appear on the earth? 地球上的哺乳动物起源于何时？牛津高阶〔badger〕Any of several similar mammals, such as the ratel.獾类动物：一些类似哺乳动物中任何一种，如密獾美国传统〔badger〕The fur or hair of this mammal.獾的皮毛：这类哺乳动物的皮或毛美国传统〔bald〕Zoology Having white feathers or markings on the head, as in some birds or mammals.【动物学】 白斑的：头上有白色羽毛或白斑的，如有些鸟类或哺乳动物美国传统〔beard〕A hairy or hairlike growth such as that on or near the face of certain mammals.颌毛：某些哺乳动物脸上或脸周围生长的毛或毛状物美国传统〔beast〕An animal other than a human being, especially a large four-footed mammal.兽：动物而非人类，尤指体型大的四足哺乳动物美国传统〔beestings〕The first milk secreted by a mammal, especially a cow, after parturition; colostrum.初乳：哺乳动物分娩后最初分泌的奶，尤指牛；初乳美国传统〔belong among〕Whales belong among the mammals.鲸属于哺乳动物。21世纪英汉〔be〕Apes are mammals.猿是哺乳动物。韦氏高阶〔bioflavonoid〕Any of a group of biologically active substances found in plants and functioning in the maintenance of the walls of small blood vessels in mammals.生物类黄酮：发现于植物中的一组生物活性物质，对哺乳动物的小血管壁有维护作用美国传统〔blowhole〕A hole in ice to which aquatic mammals, such as dolphins, come to breathe.冰上的孔穴：生活在水中的哺乳动物，如海豚，前来换气的冰面上的孔美国传统〔blubber〕The thick layer of fat between the skin and the muscle layers of whales and other marine mammals, from which an oil is obtained.鲸脂：鲸和其它海洋哺乳动物的表皮层肌肉层之间的厚层，含有油脂美国传统〔boar〕The adult male of any of several mammals, such as the beaver, raccoon, or guinea pig.雄性动物：雄哺乳动物，如海狸、浣熊、豚鼠等美国传统〔breast〕A corresponding organ in other mammals.胸脯：其它哺乳动物的相应器官美国传统〔brown fat〕A dark-colored, mitochondrion-rich adipose tissue in many mammals that generates heat to regulate body temperature, especially in hibernating animals.肩胛间腺：很多哺乳动物身上深色的、富含线粒体的脂肪组织，可产生热量以调节体温，尤指在冬眠动物体内美国传统〔buffalo〕Any of several oxlike Old World mammals of the family Bovidae, such as the water buffalo and Cape buffalo.水牛，野牛：一种似牛的东半球牛科哺乳动物，如水牛和非洲野牛美国传统〔bull〕An adult male bovine mammal.公牛：成熟的雄牛美国传统〔buttock〕The analogous part of the body on certain mammals.屁股：某种哺乳动物身体上功能相似的部分美国传统〔calf〕The young of certain other mammals, such as the elephant or whale.幼崽：某种其它哺乳动物的幼儿，如象或鲸美国传统〔canid〕Any of various widely distributed carnivorous mammals of the family Canidae, which includes the foxes, wolves, dogs, jackals, and coyotes.犬科动物：任一种广泛分布于世界各地的犬科食肉哺乳动物，包括狐狸、狼、狗、豺和小狼美国传统〔cannon bone〕A supporting bone of the leg in some hoofed mammals, analogous to the metacarpus of the hand or the metatarsus of the foot in human beings.炮骨，管骨：某些哺乳动物的腿部起支撑作用的骨头，相当于人类手中的掌骨或足部的跖骨美国传统〔cannon〕Zoology The section of the lower leg in some hoofed mammals between the hock or knee and the fetlock, containing the cannon bone.【动物学】 炮骨，管骨：某些有蹄哺乳动物小腿的部分，位于跗关节或膝关节与球关节之间，含有炮骨美国传统〔carnassial〕A tooth adapted for tearing apart flesh, especially one of the last upper premolar or first lower molar teeth in carnivorous mammals.裂齿，食肉齿：适合于撕裂肉的牙齿，尤指食肉哺乳动物最后上前臼齿之一或第一个下臼齿美国传统〔carnivore〕Any of various predatory, flesh-eating mammals of the order Carnivora, including the dogs, cats, bears, weasels, hyenas, and raccoons.食肉动物：食肉目各种食肉性哺乳动物的一种，包括狗、猫、熊、鼬、鬣狗以及浣熊美国传统〔cat〕Any of various other carnivorous mammals of the family Felidae, which includes the lion, tiger, leopard, and lynx.猫科动物：其它种类不同的猫科动物，包括狮、虎、豹和山猫美国传统〔cetology〕The zoology of whales and related aquatic mammals.鲸（类）学：研究鲸和与其有亲缘关系的水生哺乳动物的动物学美国传统〔chalicothere〕Any of various extinct ungulate mammals of the Eocene to Pleistocene epochs, having distinctive three-clawed, three-toed feet.爪兽：一种已灭绝的始新世和更新世的有蹄哺乳动物，其特征为有三爪，每爪有三趾美国传统〔chiropteran〕A mammal, such as the bat, that is a member of the order Chiroptera and has forelimbs modified as wings.翼手目动物：如蝙蝠等属于翼手目的哺乳动物，其前翼进化成翅膀美国传统〔chorion〕The outer membrane enclosing the embryo in reptiles, birds, and mammals. In placental mammals it contributes to the development of the placenta.绒毛膜：在爬行类动物、鸟类及哺乳类动物中包含胚胎的外膜，在有胎盘哺乳动物中与胎盘的发育有关美国传统〔civet〕The fur of one of these mammals.香猫皮，麝香猫皮：这些哺乳动物的皮美国传统〔civet〕The thick, yellowish, musky fluid secreted by one of these mammals, used in the manufacture of perfumes.香猫香，麝猫香：这些哺乳动物分泌的粘稠、黄色有麝香味的液体，用于香水的制作美国传统〔claw〕A sharp, curved nail on the toe of a mammal, reptile, or bird.爪：哺乳动物、爬行动物或鸟脚趾上的尖锐、弯曲的指甲美国传统〔cloaca〕The common cavity into which the intestinal, genital, and urinary tracts open in vertebrates such as fish, reptiles, birds, and some primitive mammals.泄殖腔：脊椎动物（如鱼、爬行动物、鸟和某些低级哺乳动物）的肠道、生殖道和泌尿道口通往的共用体腔美国传统〔confine〕These small mammals are generally confined to the south of the island.这些小型哺乳动物一般只出没于该岛南部。牛津搭配〔conus arteriosus〕A conical extension of the right ventricle in the heart of mammals, from which the pulmonary artery originates.动脉锥，动脉圆锥：哺乳动物心脏内右心室的圆锥状延伸物，从这里产生肺动脉美国传统〔coracoid〕A bony process projecting from the scapula toward the sternum in mammals.肩突：哺乳动物从肩板向胸骨凸出的骨状突起美国传统〔creation〕The whale is the largest mammal in all creation.鲸是全世界最大的哺乳动物。英汉大词典〔creodont〕Any of various extinct carnivorous mammals of the suborder Creodonta, of the Paleocene Epoch to the Pliocene Epoch.肉齿类哺乳动物：任一种从古新世到上新世之间的属于肉齿亚目的多种现已灭绝的食肉哺乳动物美国传统〔depleted〕Most native mammal species have been severely depleted.大多数本地哺乳动物的数量都已经大大减少了。柯林斯高阶〔dewclaw〕A vestigial digit or claw not reaching the ground and found on the feet of certain mammals.上爪，残留趾：退化的足趾或在一些哺乳动物脚上发现的不接触地面的爪美国传统〔differ〕Birds differ from mammals.鸟类与哺乳动物不同。美国传统〔doe〕The female of various mammals, such as the hare, goat, or kangaroo.哺乳动物的母性：哺乳动物如兔、山羊或袋鼠等的母性美国传统〔dog〕Any of various carnivorous mammals of the family Canidae, such as the dingo.野犬：犬科的各种食肉动物，如澳洲野犬美国传统〔dorsal fin〕The main fin located on the back of fishes and certain marine mammals.背鳍：鱼或一些海洋哺乳动物背部主要的鳍美国传统〔edentate〕Of or belonging to the order Edentata, which includes mammals having few or no teeth, such as anteaters, armadillos, and sloths.贫齿目的：属于贫齿目的，包括无齿和少齿的哺乳动物，如食蚁兽、犰狳和树懒美国传统〔emerge〕Sea mammals must emerge periodically to breathe.海生哺乳动物必须不断地浮现出海面呼吸美国传统〔eutherian〕Of or belonging to the infraclass Eutheria, a division of mammals to which all the placental mammals belong.真哺乳亚纲的：关于或属于哺乳动物真兽亚纲的一个下纲，包括有胎盘哺乳动物美国传统〔evolve〕Mammals evolved from reptiles.哺乳动物是从爬行动物进化而来的。英汉大词典〔expedition〕She died while on an expedition to Peru to study nocturnal mammals.她死于前往秘鲁考察夜行哺乳动物的途中。麦克米伦高阶〔expert〕He's a world expert on marine mammals.他是研究海洋哺乳动物方面的世界性权威。朗文当代〔fallopian tube〕Either of a pair of slender ducts through which ova pass from the ovaries to the uterus in the female reproductive system of human beings and higher mammals.输卵管：人以及高等哺乳动物的雌性生殖系统的一对纤细的管子之一，通过它将卵从卵巢传递至子宫美国传统〔fall〕Whales fall under the class of mammals.鲸归入哺乳动物纲。英汉大词典〔feed on/upon〕Owls feed on insects, birds, and small mammals.猫头鹰以昆虫、鸟类和小型哺乳动物为食。韦氏高阶〔fissiped〕A carnivorous mammal, such as a bear, dog, or cat, that has such toes.裂足动物：熊、狗或猫等有这种脚趾的食肉类哺乳动物美国传统〔fissiped〕Having the toes separated from one another, as in the feet of certain carnivorous mammals.裂足的：如某些食肉类哺乳动物的脚各脚趾分裂开的美国传统〔flight〕Bats are the only mammals to have achieved sustained flight.蝙蝠是唯一能持续飞行的哺乳动物。牛津搭配〔flipper〕A wide, flat limb, as of a seal, whale, or other aquatic mammal, adapted for swimming.鳍，鳍足：海豹、鲸或其它水生哺乳动物的宽而扁的适于游泳的肢美国传统〔flying〕The bat is a flying mammal.蝙蝠是会飞的哺乳动物美国传统〔food〕Most mammals use their sense of smell to find food.大多数哺乳动物靠嗅觉觅食。牛津搭配〔foreface〕The part of the head of a four-legged mammal that is in front of the eyes.前颜面：四足兽头部的一部分，在眼睛的前面美国传统〔fox〕The fur of one of these mammals.狐皮：这种哺乳动物的毛皮美国传统〔fur〕A coating similar to the pelt of a mammal.皮子：象哺乳动物毛皮的覆盖层美国传统〔fur〕A garment made of or lined with the dressed pelt of a mammal.毛皮衣服：用哺乳动物毛皮做成的或做衬里的衣服美国传统〔fur〕The hair-covered, dressed pelt of such a mammal, used in the making of garments and as trimming or decoration.毛皮：用于制造衣服和做镶制或装饰品的带毛的上述哺乳动物的皮美国传统〔fur〕The thick coat of soft hair covering the skin of a mammal, such as a fox or beaver.软毛：覆盖于如狐狸或海狸等哺乳动物身上的厚厚的毛美国传统〔goat antelope〕Any of various wild ruminant mammals, such as the mountain goat or the chamois, having characteristics of both goats and antelopes.羊羚：一种野生反刍哺乳动物如山地羊或小羚羊，具有山羊和羚羊的特点美国传统〔guard hair〕Any of the long coarse hairs forming a layer that covers and protects the soft underfur of certain mammals.针毛：某些哺乳动物身上覆盖的保护底绒毛的一层长而粗糙的毛美国传统〔hair〕Any of the cylindrical, keratinized, often pigmented filaments characteristically growing from the epidermis of a mammal.毛发：哺乳动物特有的，生长于表皮的柱状、有角质而且通常含有色素的细丝美国传统〔hallux〕The innermost or first digit on the hind foot of certain mammals. In human beings, it is commonly called the big toe.拇趾，大趾：某些哺乳动物后脚上最内侧或是人类的第一个脚趾头，它通常为称为大拇趾美国传统〔herbivorous〕Mammoths were herbivorous mammals.猛犸是食草性哺乳动物。外研社新世纪〔herbivorous〕Mammoths were herbivorous mammals.猛犸是食草性哺乳动物。柯林斯高阶〔hog〕Any of various mammals of the family Suidae, which includes the domesticated pig as well as wild species, such as the boar and the wart hog.猪：猪科动物的各类哺乳动物，包括家养猪及野猪和疣猪等野生猪美国传统〔homeotherm〕An organism, such as a mammal or bird, having a body temperature that is constant and largely independent of the temperature of its surroundings; an endotherm.恒温动物：一种体温恒常且不受外界温度影响的生物体，象哺乳动物或鸟；恒温动物美国传统〔hoof〕The horny sheath covering the toes or lower part of the foot of a mammal of the orders Perissodactyla and Artiodactyla, such as a horse, an ox, or a deer.蹄：覆盖奇蹄目或偶蹄目哺乳动物脚趾或足下部的角质鞘，如马，牛或鹿美国传统〔horsefly〕Any of numerous large flies of the family Tabanidae, the females of which suck the blood of various mammals.马蝇：一种属于虻科的大形体的蝇，其中雌性马蝇吸食各种哺乳动物的血美国传统〔inborn〕Mammals have an inborn fear of snakes.哺乳动物天生害怕蛇。朗文当代〔ivory〕A similar substance forming the tusks or teeth of certain other mammals, such as the walrus.牙齿成分：形成象牙或某些哺乳动物牙齿的类似物质，如海象美国传统〔lactase〕An enzyme occurring in certain yeasts and in the intestinal juices of mammals that is capable of splitting lactose into glucose and galactose.乳糖酶：一种能将乳糖分解成葡萄糖和半乳糖的酶，它存在于某些酵母或哺乳动物的体液中美国传统〔lungworm〕Any of various nematode worms, especially of the family Metastrongylidae, that are parasitic in the lungs of mammals.后圆线虫，肺蠕虫：一种线虫，尤指后圆线虫科线虫，寄生在哺乳动物的肺里美国传统〔lytta〕A thin cartilaginous strip on the underside of the tongue of certain carnivorous mammals, such as dogs.舌下软骨带：在某种食肉哺乳动物舌下边的一条薄薄的软骨带美国传统〔mammalogy〕The branch of zoology that deals with mammals.哺乳动物学：动物学中研究哺乳动物的一个分支美国传统〔mammal〕Human beings, dogs, and cats are all mammals.人类、狗和猫都是哺乳动物。韦氏高阶〔mammal〕Humans, dogs, elephants, and dolphins are all mammals, but birds, fish, and crocodiles are not.人、狗、大象和海豚都是哺乳动物，而鸟、鱼和鳄鱼则不是。剑桥高阶〔mamma〕An organ of female mammals that contains milk-producing glands; a mammary gland.乳房：雌性哺乳动物所具有的一种器官，内有能产生奶汁的腺体；乳腺美国传统〔mane〕The long hair along the top and sides of the neck of certain mammals, such as the horse and the male lion.鬃毛：某些哺乳动物沿着脖颈和颈侧生长的长毛，如马和雄性狮子美国传统〔mange〕Any of several chronic skin diseases of mammals caused by parasitic mites and characterized by skin lesions, itching, and loss of hair.兽疥癣：任一种发生于哺乳动物中的慢性皮肤病，由寄生螨引起，病症为皮肤损伤、发痒、脱毛美国传统〔marsupial〕The study sheds light on the genetic differences between placental and marsupial mammals. 这一研究让人了解胎盘哺乳动物和有袋哺乳动物在基因上的差异。剑桥高阶〔marten〕The fur of one of these carnivorous mammals.这种食肉哺乳动物的毛美国传统〔maturity〕Humans experience a delayed maturity; we arrive at all stages of life later than other mammals.人类发育较缓——在生命的各个阶段，我们都晚于其他哺乳动物。柯林斯高阶〔meat〕The edible flesh of animals, especially that of mammals as opposed to that of fish or poultry.（可食用的）肉：可食用肉，尤指（与鱼或家禽不同的）哺乳动物的肉美国传统〔mediastinum〕The region in mammals between the pleural sacs, containing the heart and all of the thoracic viscera except the lungs.纵隔：哺乳动物体内将胸腔分为左右两半的中隔，由心脏和除肺以外的胸腔脏器组成美国传统〔milk〕To draw milk from a female mammal.挤奶：从雌性哺乳动物身上挤奶美国传统〔monestrous〕Having one estrous cycle per year. Used of certain mammals.雌雄同体的：每年有一次发情期的。用于某些哺乳动物美国传统〔monogamous〕The prairie vole is a sociable creature, one of 3% of mammal species that appear to form monogamous relationships.橙腹田鼠是一种群居动物, 是3%似乎具有一雄一雌关系的哺乳动物之一。外研社新世纪〔muffle〕The fleshy, hairless snout of certain mammals, such as ruminants.鼻唇：哺乳动物肉质的无毛口鼻部，如反刍动物美国传统〔musteline〕Of, relating to, or belonging to Mustelidae, the family of fur-bearing mammals that includes the badger, mink, otter, and weasel.鼬科的：属于或有关于鼬科的，鼬科包括獾、水貂、水獭和黄鼠狼等产毛皮哺乳动物美国传统〔niche〕Mammals moved into the niche left vacant by the disappearance of the dinosaurs.哺乳动物填补了恐龙消失后留下来的空间。牛津搭配〔non-profit〕We are a non-profit organization dedicated to the conservation of ocean mammals.我们是一家致力于保护海洋哺乳动物的非营利性机构。剑桥高阶〔oncornavirus〕Any of a group of viruses that contain single-stranded RNA and produce tumors in birds and mammals.致肿瘤RNA病毒：一种包含着单一成分的RNA并在鸟和哺乳动物中产生肿瘤的病毒美国传统〔otter〕The fur of this mammal.水獭毛皮：此种哺乳动物的毛皮美国传统〔ox〕A bovine mammal.牛科的哺乳动物美国传统〔pachyderm〕Any of various large, thick-skinned, hoofed mammals such as the elephant, rhinoceros, or hippopotamus.厚皮动物：任一种体大的、厚皮的、有蹄的哺乳动物，如象、犀牛或河马美国传统〔paedomorphism〕Retention of juvenile characteristics in the adult, occurring in mammals.幼稚形态：在成熟期对幼稚特征的保留，发生在哺乳动物身上美国传统〔peccary〕Any of several piglike hoofed mammals of the family Tayassuidae, found in North, Central, and South America and having long, dark, dense bristles.西趪：一种西趪科的像猪的有蹄哺乳动物，见于北美、中美和南美地区，具有又长又黑的浓密鬃毛美国传统〔pelage〕The coat of a mammal, consisting of hair, fur, wool, or other soft covering, as distinct from bare skin.生皮，毛皮，毛：由毛发、毛皮、绒毛或其他软的覆盖物组成的区别于裸露皮肤的哺乳动物的皮毛美国传统〔penis〕The male organ of copulation in higher vertebrates, homologous with the clitoris. In mammals, it also serves as the male organ of urinary excretion.阴茎：高等脊椎动物与阴蒂相对应在雄性哺乳动物里的雄性性交器官， 也作为排尿器官美国传统〔perissodactyl〕A hoofed mammal of the order Perissodactyla.奇蹄目的带蹄哺乳动物美国传统〔perissodactyl〕Of or relating to certain hoofed mammals, such as horses and rhinoceroses, of the order Perissodactyla, that have an uneven number of toes.奇蹄哺乳动物：属于或关于某种带蹄哺乳动物的，如马和犀牛，有奇数个脚趾的美国传统〔pig〕The edible parts of one of these mammals.猪肉：这种哺乳动物的可食用部分美国传统〔pinniped〕A mammal of the suborder Pinnipedia.鳍脚亚目哺乳动物美国传统〔pleura〕A thin serous membrane in mammals that envelops each lung and folds back to make a lining for the chest cavity.胸膜：哺乳动物体中包覆每一个肺脏且向后折叠形成胸腔的血浆薄膜美国传统〔porpoise〕Any of several related aquatic mammals, such as the dolphin.鼠海豚属的动物：与鼠海豚有关的几种水生哺乳动物的一种，例如海豚美国传统〔predate〕Some species of bat predate small mammals.某些种类的蝙蝠捕食小型哺乳动物。剑桥高阶〔primitive〕The spiny anteater is a mammal, although a very primitive one.针鼹属于哺乳动物，尽管是非常原始的一种。剑桥高阶〔proboscidian〕A mammal of the order Proboscidea, such as the elephant or its extinct relatives, having a long trunk, large tusks, and a massive body.长鼻目：一种长鼻目哺乳动物，如象或已灭绝的与其有亲源关系的种，有长象鼻、大牙和庞大的身躯美国传统〔proestrus〕The period immediately before estrus in most female mammals, characterized by development of the endometrium and ovarian follicles.发情前期：大多数雌性哺乳动物发情期前准备期，其特点是子宫内膜和囊状卵泡发育美国传统〔pseudopregnancy〕A condition resembling pregnancy that occurs in some mammals, marked by persistence of the corpus luteum and usually following infertile copulation.假孕：发生在某些哺乳动物身上的类似于怀孕的状态，以不断分泌黄体素为特征，通常发生在不育性交配以后美国传统〔quarantine〕No mammals other than people may enter the country without lengthy quarantine.除人之外，所有的哺乳动物进入这个国家都必须经过长期隔离。柯林斯高阶〔raccoon〕The fur of this mammal.浣熊皮毛：这种哺乳动物的皮毛美国传统〔reticulum〕Zoology The second compartment of the stomach of ruminant mammals, lined with a membrane having honeycombed ridges.【动物学】 蜂窝胃：反刍哺乳动物胃的第二隔室，衬有一层有蜂巢状突起的膜美国传统〔rhinoceros〕Any of several large, thick-skinned, herbivorous mammals of the family Rhinocerotidae, of Africa and Asia, having one or two upright horns on the snout.犀牛：任一种大型厚皮食草的非洲或亚洲的犀牛科哺乳动物，口鼻部上长有一或两支直立的角美国传统〔rodent〕Any of various mammals of the order Rodentia, such as a mouse, rat, squirrel, or beaver, characterized by large incisors adapted for gnawing or nibbling.啮齿目动物：任一种有适于啃或咬的大前齿的啮齿目哺乳动物，如鼠、大家鼠、松鼠或狸美国传统〔ruff〕A distinctive collarlike projection around the neck, as of feathers on a bird or of fur on a mammal.翎颌：围在脖子上的领状明显突出物，如鸟的羽毛或哺乳动物的毛美国传统〔scale〕One of the many small, platelike dermal or epidermal structures that characteristically form the external covering of fishes, reptiles, and certain mammals.鳞：一种覆盖在鱼、爬行动物和某些哺乳动物体表的典型的小盘状表皮结构美国传统〔scent gland〕A specialized apocrine gland found in many mammals that produces a strong-smelling substance.香腺：在许多产生强烈气味物质的哺乳动物中所具有的特殊泌离腺美国传统〔sciurid〕Of, belonging to, or resembling the Sciuridae, a family of rodents that includes the squirrels and related mammals.松鼠：属于或象松鼠科动物的，包括松鼠和相关哺乳动物的啮齿目动物家族美国传统〔scrotum〕The external sac of skin enclosing the testes in most mammals.阴囊：在大多数哺乳动物中包着睾丸的皮囊美国传统〔sea dog〕Any of various seals or similar marine mammals.海豹：任一种海豹或类似的海生哺乳动物美国传统〔sire〕Abbr. s.The male parent of an animal, especially a domesticated mammal such as a horse.缩写 s.雄性种畜：动物亲代中雄性的一方，尤指被驯化的哺乳动物，例如马美国传统〔skunk〕The glossy black and white fur of this mammal.臭鼬皮：这种哺乳动物光滑的黑白相间的皮毛美国传统〔snare〕A trapping device, often consisting of a noose, used for capturing birds and small mammals.陷阱，罗网：一种通常包含有套索的捕捉装置，用来捕捉鸟类或小型哺乳动物美国传统〔social〕Carnivores are usually socially complex mammals.在哺乳动物中，食肉动物通常有着复杂的社会关系。牛津高阶〔strongyle〕Any of various nematode worms of the family Strongylidae, often parasitic in the gastrointestinal tract of mammals, especially horses.圆线虫：一种圆线虫科的线虫，经常寄生于哺乳动物的胃肠区，尤其是马的胃肠美国传统〔suckler〕An animal that suckles its young; a mammal.哺乳动物：给其幼畜哺乳的动物；哺乳动物美国传统〔suckler〕An unweaned mammal, especially a suckling calf.乳牛，乳兽：未断奶的哺乳动物，尤指未断奶的小牛美国传统〔suckling〕A young mammal that has not been weaned.乳兽：还未断奶的小哺乳动物美国传统〔suggest〕Its hairy body suggests a mammal.它毛茸茸的身体表明它是哺乳动物。柯林斯高阶〔syndactyly〕The condition of having two or more fused digits, as occurs normally in certain mammals and birds.并趾：有两个或多个指（趾）并在一起的状态，通常出现于某些哺乳动物和鸟身上美国传统〔syndactyl〕An animal, especially a bird or mammal, that has two or more fused digits.并指（趾）动物：有两个或多个指（趾）并在一起的动物，尤指鸟或哺乳动物美国传统〔take〕It has been suggested that mammals took over from dinosaurs 65 million years ago.有人提出哺乳动物是在 6 500 万年前取代恐龙的。牛津高阶〔tapetum〕A membranous layer or region, especially the iridescent membrane of the choroid of certain mammals.毯：一个膜质层或区域，尤指某些哺乳动物的脉胳膜的虹膜美国传统〔therapsid〕Any of various reptiles of the order Therapsida of the Permian and Triassic periods, many of which are considered to be direct ancestors of mammals.兽孔类：二叠纪和三迭纪的兽孔类爬行动物中的一种，它们中的许多种被认为是哺乳动物的直接祖先美国传统〔the〕The whale is a mammal.鲸鱼是哺乳动物。21世纪英汉〔udder〕A baglike organ containing the mammary glands, characteristic of certain female mammals, such as cows, sheep, and goats.乳房：含有乳腺的袋状器官，是某些雌性哺乳动物的特征，如乳牛、绵羊和山羊美国传统〔umbilicus〕Unlike other mammals, the human umbilicus is clearly visible.和其他哺乳动物不同，人类的脐肉眼清楚可见。剑桥高阶〔underfur〕The soft, fine undercoat of certain mammals, such as otters, beavers, and seals.细软绒毛：水獭，海猩和海豹等哺乳动物的底层细软绒毛美国传统〔unguiculate〕A mammal having nails or claws.有指甲或爪的动物美国传统〔unguiculate〕Zoology Having nails or claws, as opposed to hooves. Used of mammals.【动物学】 有爪的：有指甲或爪的，与蹄相反。用于动物美国传统〔ungulate〕An ungulate mammal.有蹄哺乳动物美国传统〔unguligrade〕An unguligrade mammal.蹄行的哺乳动物美国传统〔unique〕Humans are unique among mammals in several respects.在哺乳动物中，人类有几方面非常特别。韦氏高阶〔unlike〕Unlike most mammals, the platypus lays eggs.与大多数哺乳动物不同，鸭嘴兽产卵。韦氏高阶〔unprotected〕Although some marine mammals are protected by environmental laws, many remain unprotected.尽管有一些海洋哺乳动物受到了环境法的保护，但还有很多不在其中。剑桥高阶〔urethra〕The canal through which urine is discharged from the bladder in most mammals and through which semen is discharged in the male.尿道：大多数哺乳动物自上尿液从膀胱中排出体外的管道，雄性的精子可从中排出美国传统〔urine〕The waste product secreted by the kidneys that in mammals is a yellow to amber-colored, slightly acid fluid discharged from the body through the urethra.尿，小便：哺乳动物由肾脏排泄出的排泄物，颜色为黄色到琥珀色之间，为略含酸性的液体，通过尿道排出体外美国传统〔vagina〕The passage leading from the opening of the vulva to the cervix of the uterus in female mammals.阴道：雌性哺乳动物的从外阴阴门处通向子宫颈的通道美国传统〔venter〕Zoology A part in lower forms of animal life corresponding to the abdomen of mammals.【动物学】 腹腔：动物生命低级形式的一部分，与哺乳动物的腹部相对应美国传统〔vibrissa〕Any of the long, stiff hairs that project from the snout or brow of most mammals, as the whiskers of a cat.刚毛：大多数哺乳动物的长且刚直的鼻口毛或眉毛，比如猫的胡子美国传统〔vicuña〕Fabric made from the fleece of this mammal.驼马绒，驼马织物：用这种哺乳动物的皮毛做成的织物美国传统〔vicuña〕The fleece of this mammal.驼马皮毛：这种哺乳动物的皮毛美国传统〔villus〕One of the fingerlike projections of the chorion that contribute to the formation of the placenta in mammals.羊膜绒毛：绒毛膜的分支突起，借以形成哺乳动物的胎盘美国传统〔viverrine〕Of or belonging to the family Viverridae, which includes small carnivorous mammals such as the civets and mongooses.灵猫科的：属于或关于灵猫科的，其中包括如灵猫和獴在内的小型肉食哺乳动物美国传统〔viviparous〕Zoology Giving birth to living offspring that develop within the mother's body. Most mammals and some other animals are viviparous.【动物学】 胎生的：通过在母体中发育产生后代的。绝大多数哺乳动物和其它一些动物为胎生美国传统〔warm-blooded〕Birds and mammals are warm-blooded.鸟类和哺乳动物都是温血动物。剑桥高阶〔watch〕Cats are constantly on the watch for mice or other small mammals.猫总是伺机抓些老鼠或其他小哺乳动物。牛津搭配〔web〕A membrane or fold of skin connecting the toes, as of certain amphibians, birds, and mammals.蹼：连接某些动物，如两栖动物、鸟和哺乳动物的趾的皮肤褶或膜美国传统〔whelp〕A young offspring of a mammal, such as a dog or wolf.幼兽：哺乳动物的幼仔，如小狗或小狼美国传统〔with〕Marine mammals generally swim with the current.海洋哺乳动物一般顺水而游。牛津高阶〔wolf〕Any of various similar or related mammals, such as the hyena.类似狼的动物：任何相似的或相关的哺乳动物的一种，如狼狗美国传统〔xanthopterin〕A yellow pigment in the wings of certain butterflies and moths, found also in the urine of mammals.黄蝶呤：存在某些蝴蝶和蛾翅膀中的一种黄色色素，也存在于哺乳动物的尿中美国传统Mammals are warm- blooded and reptiles are cold- blooded.哺乳动物是温血动物，爬行动物是冷血动物。剑桥国际A mammal or bird is able to keep its body temperature fairly constant, whatever fluctuations there may be in the ambient temperature.哺乳动物或鸟类可以使自己的体温保持完全不变，无论周围的温度如何变化。剑桥国际All mammals breathe air. 哺乳类动物全都呼吸空气。译典通Birds, fish, mammals, amphibians and reptiles are all vertebrates.鸟类、鱼类、哺乳动物、两栖和爬行动物都是脊椎动物。剑桥国际Driftnets catch everything from medium-sized fish to aquatic mammals.漂网能捕捞许多东西，从中等大小的鱼到水生哺乳动物。剑桥国际Humans, dogs, elephants and dolphins are all mammals, but birds, fish and crocodiles are not.人类，狗和海豚都是哺乳动物，而鸟，鱼和鳄鱼不是。剑桥国际Humans, insects, reptiles, birds and mammals are all animals.人、昆虫、爬行类、鸟和哺乳类都是动物。剑桥国际In humans and other mammals, the respiratory system includes the lungs, the diaphragm and the windpipe.人类与其它哺乳动物的呼吸系统包括肺、隔膜和气管。剑桥国际Kangaroos are herbivorous mammals.袋鼠是食草的哺乳动物。剑桥国际Most mammals live on land. 大多数哺乳动物生活在陆地上。译典通The brains of higher animals such as mammals are larger than those of reptiles.哺乳动物等高等动物的脑体比爬行动物的脑体要大。剑桥国际The spiny anteater is a mammal, although a very primitive one.针鼹属于哺乳动物，尽管只是非常原始的。剑桥国际The whale is the largest mammal in all creation. 鲸是全世界最大的哺乳动物。译典通The whale is the largest mammal in creation. 鲸是世上最大的哺乳类动物。译典通Whales, dolphins and porpoises are marine mammals.鲸，海豚和鼠海豚是海洋哺乳动物。剑桥国际 |
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