来自《耶鲁大学开放课程：博弈论 第5集 第5集》

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  And in some sense, you had a foreshadowing of this problem a little bit
  你们可能预感到了
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  on the homework assignment, where you saw on one of the problems
  下一次作业会有一道这样的题
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  I think it was the second problem on the homework assignment
  我记得应该是第二题
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  that deleting weakly dominated strategies can lead you to do things
  剔除弱劣势策略有时候
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  that might make you feel a little bit uneasy.
  确实挺难处理的
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  So weak domination is really not such a secure notion as strict domination,
  弱劣势策略不像严格劣势策略那么好处理
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  and we'll see here as a trivial example of that.
  我们来分析一个简单的案例
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  And again, so here's the trivial example, not an interesting example,
  这是一个简单而枯燥的案例
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  but it just makes the point.
  但它却很能说明问题
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  So here's a 2 x 2 game.
  这仍然是一个2 * 2的博弈
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  Player 1 can choose up or down and Player 2 can choose left or right,
  参与人1可选上下而参与人2可选左右
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  and the payoffs are really trivial:
  收益很简单