1. Sounds bounce off heavy storm clouds and return to earth with increased force. 声音从暴风云中反弹回来，并带着更大的力量返回地球。
2. Short sound waves bounce off even small objects. 短声波即使遇到小物体都会产生回音。
3. So these rapid clicks that are sent out bounce off objects, maybe a group of fish swimming over here, a boat coming from over there. 这些声波发出后碰到物体，有可能是这边的鱼群或是那边来的船。
4. The sounds bounce off them and the lower jaw captures the returning sounds, making it possible for the dolphin to sense what's in the surrounding water and decide where to swim. 声音从它们那里折射，下颌捕捉到返回的声音，使海豚能够感受到周围水域中有什么，并决定游向哪里。
5. He had learned how to bounce off a seaweed pod. 他已经学会了弹跳过海藻群。
