来自《耶鲁大学开放课程：博弈论 第2集 第2集》

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  And there are two passes you could defend:
  你要选择两条途径中的一条设防
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  the easy pass or the hard pass.
  平坦之途的或崎岖之途
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  And there's two you could use to attack through,
  同样他也有两条路入侵途径
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  easy or hard.
  平坦之途和崎岖之途
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  Again, easy pass here just means no mountains,
  强调一下 平坦之途不用翻山越岭
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  we're not talking about something on the New Jersey Turnpike.
  我们说的不是新泽西收费公路
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  So the payoffs here are as follows, and I'll explain them in a second.
  收益如下 我简单来解释一下
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  So his payoff, the attacker's payoff,
  入侵者的收益
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  is how many battalions does he get to bring into your country?
  是他攻入你国家时还剩余多少兵力
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  He only has two to start with and for you,
  他只有两个营的兵力
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  it's how many battalions of his get destroyed?
  而你的收益是入侵者损失多少兵力
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  So just to give an example,
  举个例子吧