你解释的好，以前有老外问我就不知道怎样回答。

来源: 铁驴于 2017-06-25 12:44:43 [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.

Change Ad Consent