nurse shark
柯林斯詞典
1. N any of various sharks of the family Orectolobidae, such as Ginglymostoma cirratum of the Atlantic Ocean, having an external groove on each side of the head between the mouth and nostril 鉸口鯊; 産於大西洋嗎，在頭部?jī)蓚?cè)的嘴和鼻孔間長(zhǎng)有外部的槽
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