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2010.Aug.14.

1) 球要愈靠近身體 才發力  就會愈有球感(手感)

2) 反手靠三頭肌收縮              ；正手靠二頭肌收縮  為主
          靠手腕關節動作來咬球；      靠小臂(可以加手腕)動作來咬球

3) 轉動才能最短時間啟動、發最大的力、最快還原

4) 發球的專注力有待加強~

5) 有意識地去拉不同"節奏"、"落點"、"旋轉"、"弧度"的球

從LDS region偷來的圖 XD
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