Remember, if the racquet face is closed or tilted down at the low point of the backswing, it will naturally be vertical at contact IF the racquet does not wobble out of position.

 
  • 记得,如果网拍面在背后拉拍的低点被关闭或倾斜向下,如果网拍不摇动出位置那麽在接触时它将是自然垂直的。
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