蹬车并非全身运动，而快走要用到上身和手臂，相对较均匀

来源: 羊脂玉净瓶于 2013-06-02 17:10:22 [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.