跑步对膝盖的要求很高,并不适合很多人。

回答: lower BMI, run marathon.-worldance-2017-02-01 19:09:22

lower BMI是个大框

什么都可以往里装

具体怎么实施?

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do anything to make youself leaner, and have less fat overall. --worldance-- 给 -worldance- 发送悄悄话 (227 bytes) () 02/01/2017 postreply 19:35:31

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