谢谢你提供的连接，很有意思！！英文部分要慢慢体会，谢谢！

来源: 查立于 2012-11-24 22:41:23 [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.