S wave

例句：

1. 1. The earthquake caused a series of surface waves to travel through the ground.
   地震引发了一系列表面波穿过地面传播。
2. 2.Physicists have been studying surface waves for decades.
   物理学家们已经研究表面波几十年了。
3. 3. The sound of the waves on the surface is very clear and distinct.
   水面上波纹的声音非常清晰和明显。