关于这个也有不同的说法，个人有个人的观点。

来源: viewfinder 于 2011-12-10 17:55:07 [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.