回音

例句：

1. 1. The sound of the waves echoed through the valley.
   海浪的声音在山谷中回荡。
2. 2. The music was so loudthat it echoed off the walls.
   音乐太响了，以至于它回荡在墙上。
3. 3. The echoes of history arestill felt in this town.
   历史的影响仍然在这个小镇上感受到。