| 单词 | 鳃孔 |
| 释义 | 〔spiracle〕A small respiratory opening behind the eye of certain fishes, such as sharks, rays, and skates.鳃孔：某些鱼类眼睛后面的呼吸小孔，例如鲨、鳐及灰鳐〔shark〕Any of numerous chiefly marine carnivorous fishes of the class Chondrichthyes (subclass Elasmobranchii), which are sometimes large and voracious and have a streamlined, torpedolike body, five to seven gill openings on each side of the head, a large oil-filled liver, a cartilaginous skeleton, and tough skin covered with small toothlike scales.鲨鱼：任一种软骨鱼纲的海生食肉鱼，有的体形巨大、贪婪并呈流线形，有鱼雷状躯体，头的侧面各有五至七个鳃孔，并生有一个大的富有油脂的肝脏，一个软骨骨架和覆盖有小齿状鳞片的坚韧表皮 |
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