来自《耶鲁大学开放课程：博弈论 第12集 第12集》

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  for example,
  比如
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  (A,B) is a Nash Equilibrium and (B,A) is a Nash Equilibrium,
  (A,B)和(B,A)都是纳什均衡
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  but unfortunately they're not symmetric,
  但可惜是它们不是对称的
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  and so far we're focusing on games that are symmetric,
  到目前为止我们只关注了对称的博弈
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  this is random matching.
  而这个是随机配对的
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  There's no asymmetry in the rows--in the row and column player,
  在横排和列的参与人中并没有不对称
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  although in the handout--
  虽然在我给你们的资料里
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  not the handout,
  不是文字资料
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  in the reading packet I made for you--
  是在我给你们的阅读包里
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  they do also look at some asymmetric versions of games,
  的确讨论了些不对称的博弈
• 
  
  but for now we're just looking at symmetry.
  但是现在 我们还是考虑对称的情况
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  So neither (A,B) nor (B,A) will serve our purpose
  (A,B)或者(B,A)都不满足要求