来自《耶鲁大学开放课程：博弈论 第1集 第1集》

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  If you put Beta and you're paired with Alpha,
  如果你选β你对手选α
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  you'll get a C and your pair an A.
  你得C你对手得A
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  If you and your pair both put Beta, then you'll both get B+."
  如果你们都选β 你们都得B+"
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  So that's the thing you just filled in.
  这就是你们之前填的东西
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  Now before we talk about this,
  在我们讨论之前
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  let's just collect this information in a more useful way.
  先有效地整理一下这些信息
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  So I'm going to remove this for now.
  我先把它们擦掉
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  We'll discuss this in a second,
  一会再开始分析
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  but why don't we actually record what the game is, that we're playing first.
  我们先记录一下这个游戏的内容
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  So this is our grade game, and what I'm going to do,
  就是我们的成绩博弈
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  since it's kind of hard to absorb all the information
  因为这么长一段文字
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  just by reading a paragraph of text,
  从中摘取信息有点困难