没有严格的定义吧,俺理解好,就是大多数人的普世理念吧.

来源: 超级懒爸于 2013-01-22 17:14:44 [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.