想起很久以前看到的这篇好文，翻出来再琢磨琢磨:)

来源: 丹砂于 2011-01-31 17:15:24 [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.