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1·The ball will bounce back.

这个球会反弹。

2·Can it bounce back?

它能反弹吗？

3·They analyze the echoes, how the waves bounce back.

他们分析回声，以及波是如何反弹回来的。

4·So the bat sends out these pulses, very focused bursts of sound, and echoes bounce back.

所以蝙蝠发出这些脉冲，一种非常集中的声波，然后回声就会反弹回来。

5·They can tell the distance of various objects by how quickly the sound waves bounce back off them.

他们可以通过声波反弹的速度来判断不同物体之间的距离。

6·He is young enough to bounce back from this disappointment.

他非常年轻，会从这次失望中振作起来。《柯林斯英汉双解大词典》

7·He's had a lot of problems, but he always seems to bounce back pretty quickly.

他遭遇过很多挫折，但他似乎总能很快地振作起来。《牛津词典》

8·They know how to bounce back.

他们知道如何重新振作起来。

9·He will bounce back stronger again.

他会再次变得更强大。

10·They hope the market will bounce back.

他们希望市场能恢复活力。