“腹鳍”造句

鱼的腹鳍
a fish's ventral fin

腹鳍 对应着四足动物的后肢.
Ventral ( or pelvic ) fins correspond to the hind limbs of a quadruped.

这快速流动的气流为腹鳍提供了额外的升力.
This faster - moving air provides the pelvic fin with additional lift.

• #腹鳍