我看的文章好像说什么管子变细，坐下就堵了，躺着还通一点。

来源: 如尘于 2013-05-07 18:33:20 [旧帖] [给我悄悄话] 本文已被阅读：次

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我看的文章好像说什么管子变细， 坐下就堵了， 躺着还通一点。