牢記能量守恒定律，運動長短無所謂

來源: Teetrinker 於 2018-04-05 10:10:41 [博客] [舊帖] [給我悄悄話] 本文已被閱讀：次

消耗的比吃的多，減肥。反之則增肥。很簡單的道理

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