从开始锻炼到现在，觉得跑步使我的膝盖强壮了，以前膝盖疼的得4脚着地爬楼，现在轻松跑上去。

来源: taoqibao 于 2014-08-31 18:16:45 [旧帖] [给我悄悄话] 本文已被阅读：次

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