There is a rumor that the very first games were played with cigar box LIDS for paddles, carved champagne corks for balls, and a row of upended books for a divider in the center of the court.

谣传最初几场是以雪茄盒盖当球拍、香槟软木塞当球，还将一排书竖在球场中间分隔两边。

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So Player I's payoff, if she chooses top and Player II chooses center, we read by looking at the top row and the center column, and Player I's payoff is the first of these payoffs, so it's 11.

参与人I的收益,如果她选上,参与人II选中,我们来看一下上行和中列,参与人I对应第一个收益即11

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