来自《耶鲁大学开放课程：博弈论 第7集 第7集》

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  why do I want to go back at this point?
  为什么我现在想返回去讲选举呢
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  Well one reason I want to go back is you'll notice
  原因之一是我想你们将注意到
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  I've been putting up these lines on the board
  我在黑板上画了一条线
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  and when we visited elections on the second day,
  当我学习第二天学习的选举时
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  we said that you could think of that line on the board,
  我们讲过你们可以想象黑板上有条线
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  as being not just left wing, right wing politics
  不仅是左派和右派的政治家
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  but also some dimension of products.
  还可以是某种产品特性
• 
  
  So I want to go back again,
  所以我想返回去
• 
  
  now we're considering the line on the board
  现在我们将黑板上的线看成
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  as being flavor in beer, or location in a town,
  啤酒的口味或城市的位置
• 
  
  and I want to go back to politics now and
  我现在再回去讨论政治
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  go back to the interpretation we started with,
  回去解释我们最初