N-COUNT Flippers are flat pieces of rubber that you can wear on your feet to help you swim more quickly, especially underwater. (游泳或潜水用的)橡胶蹼 [usu pl]
N-COUNT The flippers of an animal that lives in water, for example, a seal or a penguin, are the two or four flat limbs which it uses for swimming. (海豹或企鹅等水生动物的)鳍状肢 [usu pl]
Because the flippers are comparatively thin and blade-like, they are the one part of the leatherback that is likely to become chilled.
棱皮龟的脚蹼比较薄并且呈刀片状,因此,它们就是棱皮龟身体中有可能被冻住的部位。
Penguins use their wings as flippers.
企鹅把翅膀当作鳍来使用。
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