國二生投球.打擊和變化球的問題 - 健身
By Tracy
at 2010-08-16T00:00
at 2010-08-16T00:00
Table of Contents
如題1.我的球速約75上下算快嗎?2.打擊在大魯閣能跟上100KM的直球算好嗎?3.變化球曾經在練習時用滑球的投法有一點變化其他球種沒試過...請問我適合練哪一種球路?4.如果要再增加球速要做何種訓練(沒有健身器材的情況下)?20點感謝回答!...Showmore
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