they know. I can tell too. Usually it shows on outside , it is

来源: qiaoshe 于 2012-11-26 21:04:35 [] [博客] [旧帖] [给我悄悄话] 阅读数 : (0 bytes)
回答: how do you inspect something behind the dry wall 由 hmo 于 2012-11-26 20:52:04
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