如果沒有，那聲音如何從後麵傳出來，除非隔空傳音？況且鏡子和這個也沒有人很關係。

來源: woodsensor 於 2018-05-09 08:22:12 [博客] [舊帖] [給我悄悄話] 本文已被閱讀：次

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