[請益] 請教投球姿勢
我接觸壘球約兩三年,守備位置是外野手
但是臂力不是很強,常常不敢直接丟本壘
平常有在丟棒球,只是球速很慢,
想請教板上的前輩 我的投球姿勢是不是有什麼問題
附上影片http://www.youtube.com/watch?v=WnpE0-kRMHU
謝謝 ^_^
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