| 单词 | 目鱼 |
| 释义 | 〔crossopterygian〕A member of the Crossopterygii, a group of bony fishes with paired, rounded fins that are extinct except for the coelacanths and are regarded as ancestors of amphibians and other terrestrial vertebrates.总鳍鱼：一种总鳍目鱼，长有成对的圆形鳍，除了空鳍鱼类的鱼之外现已全部灭绝，被认为是两栖纲动物和其它陆生脊椎动物的祖先〔mooneye〕A silvery freshwater fish of the family Hiodontidae, especiallyHiodon tergisus of eastern North America. 圆腹淡水鲱：构成月目鱼属的银色淡水鱼，尤指生活于北美洲的月目鱼属 的一种鱼 |
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