Like, in a situation that desperate, you have to do what you have to do to survive.

在那样的绝境之下，为了生存，你不得不那样做。

耶鲁公开课 - 公正课程节选

And the context of sorting, the worst case is your handed a problem that's in complete reverse order because that implies you have - to do as more work that could possibly-- that you could-- you have to do more work than you would of course if things were in perfect order.

在排序的环境中，最糟糕的情况是待排序的序列是,完全逆序的，在这种情况下,你不得不做更多的工作-,比起一个较理想顺序的序列,你必须花费更多的努力。

哈佛公开课 - 计算机科学课程节选

They had to work on that, they had to devise-- they had to get an appraisal industry that could appraise houses and get some idea of what they're really worth.

他们得做些工作，他们要设计出-,他们不得不借助于评估机构,以便于鉴定房屋情况，并且得知一些,其真实价值的参考意见。

耶鲁公开课 - 金融市场课程节选

You have to do what you have to do.

不得不那样做。

耶鲁公开课 - 公正课程节选

It used to be case that trained people like dieticians would have to sit down and go through one by one by one and do nutrient analysis, but of course the computer helps with that.

过去那些受过专业训练的人,如营养师,不得不坐下来,一项一项仔细查看,并做营养分析,当然,现在有电脑协助来做这些

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

Meaning, sometimes you need to do this, but in general there's at least in my view and I don't, John you just don't want to do this.

意思也就是，有的时候你不得不这么做，但是通常来说,至少我认为不该这么做，你同意这么做么？--，John，，would，you，agree？—,你不该这么做。

麻省理工公开课 - 计算机科学及编程导论课程节选

That's what you have to do.

这是不得不做的。

耶鲁公开课 - 金融市场课程节选