That information is available in the current shot, but there's another source of information not available on the current shot, but only available by repeated experience in the game of tennis, and that's that the ball doesn't bounce with equal probability over the court during the match.
以上这些信息是实时获得的 但是另一个获得信息的渠道 不是实时获得的 而是来自只有通过反复练习网球才得来的经验 经验告诉你，这个网球在比赛过程中 不会以均等的概率落在球场里