這麽簡單的道理，照理隻要化上幾個小時就能搞明白的，但是，被一大批的聰明人搞了大半個世紀還不明白。

來源: 益生菌於 2016-04-22 07:13:10 [博客] [舊帖] [給我悄悄話] 本文已被閱讀：次

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