用進廢退，這抗蚊蟲叮咬的基因一直不用，到你這就給退化了。試試加拿大的露營，虱子跳蚤沒有，但蚊子絕對鍛煉人。

來源: 玄野於 2012-04-05 07:47:20 [博客] [舊帖] [給我悄悄話] 本文已被閱讀：次

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