我跑了很多年，膝盖没任何问题。因人而异吧。

来源: 自由自在生活于 2015-07-06 16:55:50 [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