| 单词 | 腹鳍 |
| 释义 | DEFINITIVE EXAMPLES 权威例句〔clasper〕A posterior extension on each of the pelvic fins of male elasmobranch fishes that aids in the transmission of sperm during copulation.交合突，鳍脚：雄性板腮亚纲鱼的每支腹鳍的前端延伸，在交配中辅助精子的传递美国传统〔goby〕Any of numerous usually small spiny-finned fishes of the family Gobiidae, having the pelvic fins united to form a suction disk.鰕虎鱼：鰕虎鱼科的一种通常小的带棘鳍的鱼，具有聚合成吸盘的腹鳍美国传统〔pelvic fin〕Either of a pair of lateral hind fins of fishes, attached to the pelvic girdle and corresponding to the hind limbs of higher vertebrates.腹鳍：附着于鱼的腰带上且对应于高等脊椎动物后肢的一对鱼的侧后鳍之一美国传统〔ventral fin〕A fin, such as a pelvic fin or an anal fin, that is found on the ventral side of a fish.腹鳍；臀鳍：位于鱼的腹侧的鳍，如腹鳍或臀鳍美国传统〔ventral〕A ventral fin.腹鳍；臀鳍美国传统The pelvic fins of the male catfish are longer and more pointed than those of the female.雄鲶鱼的腹鳍比雌鲶鱼的要长要尖。剑桥国际 |
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