vibratory freqency

例句：

1. 1. The vibrating strings were playing a beautiful melody.
   振动着的弦奏出了美妙的旋律。
2. 2.The vibrating plates caused the sound to reverberate throughout the room.
   振动的板子使声音在整个房间内回荡。
3. 3. The vibrations from the earthquake were felt all over the city.
   地震引起的振动让整个城市都感受到了。