来自《耶鲁大学开放课程：博弈论 第13集 第13集》

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  If there's $3 and she matches 3,
  如果帽子里有3美元她也放了3美元
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  she gets back 5 for a profit of 2;
  她共获得5美元即2美元净利
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  and if she simply takes the money out of the hat
  如果她只是把帽子里的钱取走
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  and puts it in her pocket
  放进自己的钱包里
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  then she gets how ever much money was in the hat.
  那她就只能得到帽子里的那么多钱
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  So I here will be the provider of the hat,
  我给大家准备好了帽子
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  we'll use the same hat we used before,
  还是用回上次用过那顶帽子
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  and if necessary I'll provide sheets of paper,
  当然了如果有必要我还准备好了白纸课
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  we can write IOU's on,
  可以用它来打白条
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  but I'm hoping we can play for real cash.
  不过我希望还是用真钱来玩吧
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  Later on, it would be nice to get a chair here, but for now,
  等下最好搬个椅子来 不过现在
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  let me just go down here and I'm going to grab this mike.
  我先找个麦克风然后走到同学中见去