髕骨上麵20公分恰好是股四頭肌的腹部。
所有跟帖:
• 就是這個意思。用20公分是保證兩腿的周徑在同一水平上。 -薛成- ♂ (0 bytes) () 08/17/2015 postreply 07:08:19
• 就是這個意思。用20公分是保證兩腿的周徑在同一水平上。 -薛成- ♂ (0 bytes) () 08/17/2015 postreply 07:08:19
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