增快球速(棒球) - 健身

By Damian 
at 2008-07-14T00:00
at 2008-07-14T00:00
Table of Contents
我國二168公分65公斤去大魯格測球速只有70~80公里但我看我朋友都投到90公里要如何才能加快我的球速...Showmore
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        健身
        
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By Brianna 
at 2008-07-18T03:50
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at 2008-07-16T00:25
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