The first lesson was don't shoot towards the middle of the goal and the second more general lesson was what?

结论一是不要从中路射门,第二个更普遍的结论是什么

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So right footed players find it easier to shoot to the left as facing, to shoot across the goal.

习惯用右脚射门的球员从左路进攻,会更容易把球射入球门

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And the idea here is that the number 4 represents 40% chance of scoring if you shoot the ball to the left of the goal and the goal keeper dives to the left.

在这里表示进球概率是40%,前提是你从左路射门,而门将也扑向左路

耶鲁公开课 - 博弈论课程节选