初学者及中等水平的选手在发下旋球时，注意右肩及上肢向前用力转动，这样球在球拍上“吃球”时间会加长，旋转也会增加。发球时，球拍与球的感觉很重要。练习时首先要加强摩擦球的意识，以肘关节为中心，前臂向上弯曲后向前下方用力。优秀运动员在发球时，引拍拉手后，在球拍 Beginners and middle-level players in the spin down the ball, pay attention to the right shoulder and upper limbs forward force rotation, so the ball on the racket, “eat the ball” will lengthen the time, rotation will increase. Serve, the racket and ball feeling is very important. First of all, we must strengthen the sense of friction ball to the elbow as the center, bent upward forearm force forward and down. Outstanding athletes in the service, the lead shoot after the racket