Just as we said you should never choose a strictly dominated strategy, you're probably never going to choose a weakly dominated strategy either, but it's a little more subtle.

我们说过,不要采用严格劣势策略,你也不应该采用弱劣势策略,不过这个更严密一些罢了

耶鲁公开课 - 博弈论课程节选