每个人的体质不一样，如果觉得跑不动，快走也可到达跑步的效果。

来源: 从小到大于 2014-09-29 16:51:23 [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.