来自flip, 翻转，翻动。用来指海洋动物的鳍足或潜水员使用的脚蹼。

1. The seal's flipper is homologous with the human arm.

海豹的鳍肢与人类的手臂同源。

来自《权威词典》

2. It's almost like a flipper action as she kicks down.

她向下踢腿时有鱼鳍的效果.

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3. Flipper? Maybe those frisky crowd - pleasers at the aquarium?

鳍状肢? 或许是水族馆中那些活泼逗人的生物?

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4. The bumps on a whale's flipper help form vortices that generate more lift, more smoothly.

鱼鳍上突起的部分有助于形成涡旋,也就更增大上升力 、 减小阻力.

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5. But look at how I get the flipper effects with my feet and my ankle flexibility.

但是我如何用脚和灵活的踝关节制造出脚蹼效果的.

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