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在上期专栏中讲到改变球的线路和打出角度的重要性。本期我们将讨论如何做到这一点,以及在什么时机下做是恰当的。
In the last column, we talked about the importance of changing the course of a ball and making a point of view. This issue we will discuss how to do this and when it is appropriate to do it.