ventral fin
参考词典中ventral fin的常规释义：
基本释义
- n. [鱼]腹鳍
英英解释
1个名词解释
- either of a pair of fins attached to the pelvic girdle in fishes that help control the direction of movement; correspond to hind limbs of a land vertebrate
[同] pelvic fin, ventral fin
点击查看……- either of a pair of fins attached to the pelvic girdle in fishes that help control the direction of movement; correspond to hind limbs of a land vertebrate
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