人體可不是簡單的1+1=2上26下26用的是不同的肌肉和拉伸方向每個來回對我來說基本接近26-26=0或至少我感覺如此
本帖於 2016-01-09 18:05:57 時間, 由普通用戶 xianrenzhang. 編輯
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