quote from TennisAsAlways One fundamental element that is very often times overlooked and forgotten is "proper balance". Projecting your weight into the ball at contact will dramatically add power to your shots. Sometimes people will shift their momentum forward towards the net/opponent, thinking that that will contribute to more power. But that's NOT always the case. 为了击出球质，有项很基本却也常常被忽略的诀窍， 就是适当的平衡。 如果在击球的时候，同时转移身体的重心， 将能不可思议的增加球的致量。 有人会将重心往前，转向球网或是对手，并认为这将增加球的 power， 这并不完全正确。 Staying balanced is the key in producing those explosive shots. Rather than directing your weight straight ahead, have it moving into the contact point . Upon ball impact, make sure that your body is not up off the ground and or twisting and turning away from the contact point. 打出爆炸性的球质的窍门，就是保持身体的平衡。 而非将你的重量往前，或是往击球点压。 击球瞬间，确定你的身体没有离地，或是身体转离击球点。 (译按: 此处我不太懂，因为我击球有个甩身体的动作。 像鞭子一般，带动手臂击球。不知道是否就是甩离球点) There's a huge difference between forward towards the net vs forward into the contact point. Sometimes there will be instances when the contact point "may" happen to be towards the net, but it's not always that way. It all depends on the incoming directional angle of the ball relative to where you are positioned. 重心转移向球网，及转向击球点，这两个截然不同。 当然啦，有时候击球点就在身体正前方，会需要往正前方移。 却不是总是如此。 这取决於球的入射角 (译按: XD ) 和你占的位置。 Now I am not saying that you should not do an explosive FH like that of Federer's. He does leave the ground, but only AFTER ball contact. Everything happens so fast that it makes it look like the idiosyncrasies are the cause, rather then the effect. 当然，我不是叫你不要向 Federer 那样爆发性的击球， 他的确有离开地面，但只有在击球过後。 只是他的动作非常快，所以看起来像击球瞬间离开地面。 击球後离开地面，看起来比较像个人习惯。 而非如此能够打出爆炸性的球质。 Focus on balance, and see what happens. You don't have to crush the ball. Keep control of your swing, but just focus on the contact point weight shift + balance. 专注在平衡上面，然後看看发生了什麽事。 而不是像把球打碎般的暴力击球。 记得， 控制好你的挥拍、重心移向击球点、平衡。 --

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