| 单词 | an unknown |
| 释义 | DEFINITIVE EXAMPLES 权威例句〔COME FROM〕The sound came from an unknown source, far away in the distance. 这声音从远处某个地方传来。朗文写作活用〔KNOW/NOT KNOW〕The picture was painted in the 15th Century by an unknown Italian artist. 这幅画是15世纪一位不知名的意大利画家画的。朗文写作活用〔KNOW/NOT KNOW〕The team's new pitcher has never played pro baseball before and is something of an unknown quantity. 该队新加盟的投球手以前从没打过职业棒球赛，他的能力有点难以预料。朗文写作活用〔NAME〕She said the flowers were from an unknown admirer. 她说这些花是一个不知名的爱慕者送的。朗文写作活用〔PREFER〕Any smart employer would prefer to hire an experienced worker over an unknown. 精明的雇主都更愿聘用有经验的工人而不是一无所知的人。朗文写作活用〔ascribe to〕The painting was ascribed to an unknown artist.据考证这幅画的作者是一位无名画家。21世纪英汉〔attribute sth to sb/sth〕The doctors have attributed the cause of the illness to an unknown virus.医生们认为这种疾病是由一种未知的病毒引起的。剑桥高阶〔claim〕An unknown terrorist group has claimed responsibility for this morning's bomb attack.一个不知名的恐怖组织声称对今天上午的炸弹袭击事件负责。剑桥高阶〔contextual〕To find the meaning of an unknown word you should look at the contextual clues provided by the words that are around it.要推断出一个生词的意思，应该查看它周围的词语所提供的语境线索。韦氏高阶〔country〕She felt herself pushed into an unknown country, not by love, but by anger.她感到自己不是被爱情而是被愤怒推入了一个陌生之地。外研社新世纪〔denote〕The sign X denotes an unknown number.X符号表示一个未知数。英汉大词典〔entity〕The Radley Place was inhabited by an unknown entity.拉德利别墅由某个不知姓名的人物居住着。英汉大词典〔gamma-ray burst〕A short-lived, localized, and intense burst of gamma radiation that originates outside the solar system from an unknown source.γ射线：由γ射线发出的密集、局部且短暂的干扰波，来自太阳系的不明来源处美国传统〔go down to〕The famous player went down to an unknown player.这位著名选手被一位名不见经传的选手击败。21世纪英汉〔gunman〕They were shot by an unknown gunman.他们被一名来历不明的持枪歹徒打死。韦氏高阶〔humble〕Last year's champion was humbled by an unknown newcomer.去年的冠军被一个不知名的新人轻松打败。韦氏高阶〔humble〕The world champion was humbled (= unexpectedly defeated) by an unknown outsider in last night's race.昨晚比赛中那位世界冠军意外地被一位无名小卒击败。剑桥高阶〔kick〕An unknown contributor kicked in with ￡50,000.一位隐名捐助人捐了5万镑。 英汉大词典〔pencil in〕An unknown actor was penciled in to play the leading role.一个不知名的演员被匆忙列入计划，扮演主要角色。21世纪英汉〔phantom〕The phantom wine-drinker has been around (= an unknown person has been drinking the wine)! 附近一定有嗜酒幽灵出没！剑桥高阶〔potentiometer〕An instrument for measuring an unknown voltage by comparison to a standard voltage.电势计，电位计：通过与标准电压相比较而来测定未知电压的仪器美国传统〔provincial〕Owen died an unknown provincial.欧文死的时候是一个不为人知的外乡人。柯林斯高阶〔provincial〕Owen died an unknown provincial.欧文去世时是个默默无闻的外省人。外研社新世纪〔quantity〕He is an unknown quantity for his rivals.对于对手们而言，他是个未知数。柯林斯高阶〔quantity〕He is an unknown quantity for his rivals.对竞争对手而言, 他还是个未知数。外研社新世纪〔sickness〕He died from an unknown sickness.他死于一种不知名的疾病。韦氏高阶〔successive approximation〕A method for estimating the value of an unknown quantity by repeated comparison to a sequence of known quantities.逐次近似计算法：通过与已知的一系列量进行反复比较而估算一个未知量的值的方法美国传统〔transplant〕She received a bone marrow transplant from an unknown donor.她从一个匿名捐献者那里得到了移植的骨髓。韦氏高阶〔triangulation〕The location of an unknown point, as in navigation, by the formation of a triangle having the unknown point and two known points as the vertices.三角测量：通过以分别作（顶点）的两个已知点和一个未知点形成一个三角形，来求出或定位该未知点，如在航海中美国传统〔uncharted〕Nuclear fusion has taken physicists into uncharted seas/territory/waters (= a new and unknown area).核聚变将物理学家们带入了全新的未知领域。剑桥高阶〔unknown〕An unknown number of cases go unreported.有数量不清的案件没有人报案。韦氏高阶〔unknown〕An unknown number of demonstrators were arrested.有数目不详的示威者遭到了逮捕。柯林斯高阶〔unknown〕An unknown number of people were killed.丧生者人数不详。朗文当代〔unknown〕At that point in her career she was still an unknown.在职业生涯的那个阶段，她还是个无名小卒。朗文当代〔unknown〕The director cast an unknown in the lead role.这名导演选了一个无名之辈担任主演。韦氏高阶〔unknown〕The long-term effects of the drug are still an unknown.这种药品的长期效果还是个未知数。朗文当代〔violate〕She was attacked and violated by an unknown intruder.她被一个来历不明的歹徒袭击并强奸。韦氏高阶〔wager〕Stipes wagered all his money on an unknown horse.斯蒂普斯把他所有的钱都押在一匹不出名的马上。朗文当代〔x〕An unknown or unnamed factor, thing, or person.未知之（人）物：不知道的或未命名的因素、物体或人美国传统He was an unknown novelist then. 当时他是位不出名的小说家。译典通I don't know what went wrong with our relationship, but somewhere along the line (= at an unknown moment during the relationship) we just stopped loving each other.我不知道我们的关系到底怎么了，但不知什么时候起我们已不再喜欢对方了。剑桥国际Life can be likened to a journey with an unknown destination. 人生就好比一场不知终点的旅行。译典通Nuclear fusion has taken physicists into uncharted seas/territory/waters (= a new and unknown area).核聚变将物理学家们带入了全新的未知领域。剑桥国际The author had been an unknown until he published his recent book. 这位作家一直是个默默无闻的人，直到最近出版了他的一本书。译典通The doctors have attributed the cause of the illness to an unknown virus.医生们把这种疾病的起因归于一种未知的病毒。剑桥国际The new teacher is still very much an unknown quantity but we have hopes that he will be a valuable member of our team. 新教师是谁现在还难以预料，但我们希望他会成为我们队里的重要一员。译典通The painting was ascribed to an unknown artist. 那幅画被认定系一不出名的画家所作。译典通The world champion was humbled (= unexpectedly defeated) by an unknown outsider in last night's race.昨晚的比赛中，世界冠军被一个不知名的业余选手挫了锐气。剑桥国际We bought a drawing by an unknown artist. 我们买了一幅某个不出名的画家所作的画。译典通We use x as the symbol for an unknown quantity. 我们用ｘ表示一个未知数。译典通 |
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