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何谓“美式上旋”?字面上理解可知,这是一种由美国人率先发明使用的上旋发球。如果从球飞行的轨迹上去描述,它真可谓标准的“S”球。以右手人在左区发球为例,发出的球在前半段弧线是从右往左飞,落地后的弧线却是从左往右飞。假如你实在想象不出这到底是个怎样的发球,有机会你可以注意观察下职业男子选手的二发,采用的几乎都是这样的发球发向对手反手。这就是我们今天要学的美式上旋发球。不必过于敬佩这样的发球,仔细读下面精选出的五步核心要领,上场20分钟后,你就能发出“S”球。
What is meant by “American spin”? Literally understand that this is a pioneer invented by the Americans to use spin on serve. If you look at the trajectory of a ball flight, it is really a standard “S” ball. To the right hand serve in the left area for example, the ball issued in the first half of the arc is from right to left, after landing the arc is flying from left to right. If you really can not imagine what kind of serve in the end, there is a chance you can observe the second round of professional men’s players, using almost all serve backhand opponent backhand. This is the American spin-on ball we are going to learn today. Do not overly admire such serve, carefully read the following five-core core tips selected, 20 minutes after playing, you can send “S ” ball.