来自《耶鲁大学开放课程：博弈论 第2集 第2集》

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  while they're putting themselves in someone else's shoes
  并推测他人可能选择什么策略时
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  and figuring out what they're going to do.
  我们也进一步地换位思考
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  So this is an 'in shoes',
  所以这是一个不断换位思考式的过程
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  be careful where we are here,
  注意一下这里的措辞
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  this is an 'in shoes in shoes' argument,
  这是一个换位再换位思考的过程
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  at which point you might want to invent the sock.
  说明我们也要换来换去思考
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  Now, where's this going?
  接下来怎么办呢
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  We were told where it's going.
  我们已经知道会继续发生什么了
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  We're able to rule out 68 and above.
  既然我们能剔除掉68及以上的数
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  Then we were able to rule out 46 and above.
  那我们也能剔除46及以上的数
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  Now we're able to rule out 31 and above.
  然后我们就能剔除掉31及以上的数
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  By the next slice down we'll be able to eliminate
  再往下我们可以继续剔除