[問題] 發短球的第一跳落點~
教練常說:發短球的第一跳落點,
應該要靠近網子,
可是看到新科國手李佳陞的發球,
球很短,
但是第一跳卻是較靠近底線,
請問他的球是怎麼發的?
http://www.youtube.com/watch?v=sTr8Pdc49GY&feature=related
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