請問投手要怎麼在最短時間內增加球速? - 健身

By Dora
at 2008-09-17T00:00
at 2008-09-17T00:00
Table of Contents
自己有在練投有人可以分享一下增加球速的方法嗎?感恩
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健身
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By Erin
at 2008-09-18T20:07
at 2008-09-18T20:07

By Joe
at 2008-09-19T01:22
at 2008-09-19T01:22

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at 2008-09-19T07:59
at 2008-09-19T07:59

By Mary
at 2008-09-17T10:03
at 2008-09-17T10:03
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