n.鳍状肢；脚蹼
It's almost like a flipper action as she kicks down. 她向下踢腿时有鱼鳍的效果。
As a couple of flipper kicks took me ever deeper, a lionfish emerged from behind a rusted axle. 踢了踢蛙鞋,我潜到更深的地方,一尾狮子鱼从生锈的轮轴旁游了出来。
n.(非鱼类海生动物的）鳍状肢；(用于游泳或潜水的)橡胶蹼
名词flipper的复数形式.
