来自《耶鲁大学开放课程：博弈论 第2集 第2集》

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  Just check, that exactly corresponds to
  验证一下 这和我们之前
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  the easy and hard thing we just had before.
  选择平坦之途还是崎岖之途是对应的
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  I'll say it again, Player i's strategy "s'i"
  重申一下 参与者i的策略s'i
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  is weakly dominated by her strategy "si"
  弱劣于策略si
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  if she always does at least as well by choosing "si"
  当且仅当无论对手怎么做
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  than choosing "s'i" regardless of what everyone else does,
  她选择si的收益至少与选s'i的相等
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  and sometimes she does strictly better.
  有些情况下甚至是严格占优的
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  It seems a pretty powerful lesson.
  这似乎是一节相当重要的课
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  Just as we said you should never choose a strictly dominated strategy,
  我们说过 不要采用严格劣势策略
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  you're probably never going to choose a weakly dominated strategy either,
  你也不应该采用弱劣势策略
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  but it's a little more subtle.
  不过这个更严密一些罢了
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  Now that definition,
  对于这个定义