It was thought that all frogs moved this way. They'd push off with their back legs, and then once in flight, rotate the limbs forward.

一般人们认为所有的蛙都是这样：它们后腿蹬地起跳，一旦升空，后肢前摆，前肢后摆，接着前肢先落地。

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It was thought that all frogs moved this way. They'd push off with their back legs, and then once in flight, rotate the limbs forward.

一般人们认为所有的蛙都是这样：它们后腿蹬地起跳，一旦升空，后肢前摆，前肢后摆，接着前肢先落地。

youdao