背部肌肉很难练，能够负重，说明肌肉已经达到一定的力量，赞！

来源: 40er 于 2019-07-24 08:47:48 [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