好奇問問
以要丟曲球來講
下壓式 四分之三側投 側投 下勾投
不同姿勢的握法會不同嗎?
還有
如果握法,手指轉動方式都一樣
不同投球姿勢會讓球跑的方向不同嗎?
像是相對運動的概念
如果下勾投手,丟滑球,這樣球會不會往上飄?
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※ 編輯: teeo (114.44.68.71), 02/15/2016 10:21:18
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