1. 中央C音相當(dāng)於每秒鐘振動(dòng)256次。
   Middle C is equivalent to 256 vibrations per second.
2. 他告訴我說中央C音相當(dāng)于每秒振動(dòng)256次。
   He told me that middle C is equivalent to 256 vibrations per second.
3. 耳膜的振動(dòng)幫助聲音傳送到大腦。
   A vibrating membrane in the ear helps to convey sounds to the brain.
4. 鋼琴的琴鍵一彈琴弦就振動(dòng)出聲。
   The strings of a piano vibrate when the keys are struck.

動(dòng)的英語(yǔ)翻譯：