vibration excited by cutting off holding rope

例句：

1. 1.The sound of the bell was a gentle vibration in the air.
   钟声在空气中轻轻震动。
2. 2. The car's engine is producing a strong vibration.
   汽车发动机产生强烈的震动。
3. 3. The earthquake caused a series of tremors throughout the region.
   地震在整个地区引发了一系列的震动。