不执拍手的英文

free hand

• 不:    a block of wood
• 执:    hold
• 拍手:    clap one's hands; ...

例句与用法

1. The server shall then project the ball near vertically upwards , without imparting spin , so that it rises at least 16cm after leaving the palm of the free hand and then falls without touching anything before being struck
   发球员须用手将球几乎垂直地向上抛起，不得使球旋转，并使球在离开不执拍手的手掌之后上升不少于16公分，球下降到被击出前不能碰到任何物体。