来自《耶鲁大学开放课程：博弈论 第5集 第5集》

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  So, in particular, it can't be a best response
  因此说 严格劣势策略
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  to the thing being played in the Nash Equilibrium.
  不能达成纳什均衡
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  So that's actually a very good proof that proves
  这是严格劣势策略
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  that no strictly dominated strategy
  无法达成纳什均衡的
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  could ever be played in a Nash Equilibrium.
  一个很好的证明
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  But now we have, unfortunately, a little wrinkle,
  不过现在我们遇上了点小麻烦
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  and the wrinkle, unfortunately, is weakly dominated, is weak domination.
  麻烦就是弱劣势和弱优势
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  So we've argued, it was fairly easy to argue,
  我们可以理直气壮地说
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  that no strictly dominated strategy is ever going to
  严格劣势策略绝对不会
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  reappear annoyingly in a Nash Equilibrium.
  在纳什均衡里出现了
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  But unfortunately, the same is not true about weakly dominated strategies.
  可是弱劣势策略却不然
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  And in some sense, you had a foreshadowing of this problem a little bit
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