These strategies aren't dominated, nor are they dominated once you delete the dominated strategies, nor once we dominated the strategies dominated once we've deleted the dominated strategies, but they are dominated once we delete the strategies that have been dominated in the-- you get what I'm doing here.

选择20到30的策略一开始不处于劣势,在第一次剔除劣势策略时也不处于劣势,在第二次剔除势策略之后,也不处于劣势,但是在第三次剔除劣势策略之后,就变成劣势策略了,我想你们明白我的意思了

耶鲁公开课 - 博弈论课程节选

Okay, good. So in Gmail context most of you know, you cannot--you can delete things but most people just save or archive emails.

好，在Gmail中，大多数人都知道，你能删除邮件,但是大多数人会选择保存或者存档邮件。

哈佛公开课 - 计算机科学课程节选