弧圈要退，下旋要前倾，就是这个道理。所以乒乓击球有2种回击法：刚上升和最高点

来源: Sir。Long 于 2013-04-03 08:14:41 [博客] [旧帖] [给我悄悄话] 本文已被阅读：次

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