这个是比较难但很有用。中国人学不好就容易加音。

来源: niteBynite 于 2012-11-29 08:42:46 [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.