看了两遍，没明白的露一脸。背景是什么？

来源: xyz@wxc 于 2013-08-07 09:23:42 [博客] [旧帖] [给我悄悄话] 本文已被阅读：次

WENXUECITY.COM does not represent or guarantee the truthfulness, accuracy, or reliability of any of communications posted by other users.