vibration of molecule

例句：

1. 1.The sound of the bell caused a strong vibration in the room.
   铃铛的声音在房间里引起了强烈的震动。
2. 2. The car's engine vibrates when it starts up.
   汽车启动时发动机会震动。
3. 3. The scientist observed the vibration of the material under different conditions.
   科学家观察了不同条件下材料产生的震动。