问题描述：
请问：one word that you might have learned
请问：您去年年初问的问题one word that you might have learned when you were studying about sound is frequency 这句话是从哪本书上看到的一句话?我想买这本书看一下.
请问：您去年年初问的问题one word that you might have learned when you were studying about sound is frequency 这句话是从哪本书上看到的一句话?我想买这本书看一下.
问题解答：
我来补答展开全文阅读