Overhand serves may be played in differents ways, such as the overhand floater serve, the overhand spin serve and the power serve.

上手发球有不同的方法，例如上手飘球、上手旋转球和大力发球等。

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Overhand serves may be played in differents ways, such as the overhand floater serve, the overhand spin serve and the power serve.

上手发球有不同的方法，例如上手飘球、手旋转球和大力发球等。

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Serve mostly to weakness but vary the placement and spin some. A 20% variation is enough to keep opponent guessing.

发球主要发往对手的弱点，但是偶而也要变换落点和旋转，只要有20%的变化就可以让对手难以捉摸。

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Forearm muscle speed and strength training can serve to improve the success rate of rotation and increase the spin of the ball.

前臂肌肉的速度力量的训练，能够提高旋转发球速度、成功率和增加球的旋转。

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By concentrating on strong and repeatable mechanics, good placement, and spin, you can develop a second serve that helps you play points on your terms.

依靠有力的和可重复的技巧，良好的落点、旋转，你可以改进你的二发使你发挥应有的水平。

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Negative match the return of serve to put a short-based, the third board to sights on the next spin and spin attack on the main, while the inroads backspin score good results.

负场比赛接发球以摆短为主，第三板以抢攻下旋和上旋转攻为主，而抢攻下旋得分效果良好。

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Negative match the return of serve to put a short-based, the third board to sights on the next spin and spin attack on the main, while the inroads backspin score good results.

负场比赛接发球以摆短为主，第三板以抢攻下旋和上旋转攻为主，而抢攻下旋得分效果良好。

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