There seemed to be no end to the demand for men to fill the places left empty by dead and wounded soldiers.

VOA: special.2009.10.22

The animal that eats its offspring, those genes are a biological dead end.

吃掉自己后代的动物，他们的基因走进了生物学的死胡同。

耶鲁公开课 - 心理学导论课程节选

So, I said, okay, I didn't want to assume so we clicked senior and frankly it was then a dead end because apparently to get some senior discount you need to have some special pass or something like this that we didn't have and yet that certainly wasn't obvious here so now we together and this person in particular had to figure out how you go back and then restart this process.

我说，好的，我不希望揣测，所以我点击了老人票,然后问题就来了，因为似乎,需要特殊的号码之类的东西来购买老年票,但是我们没有,明显我们不应该走这步,现在我们一起必须找出,怎样返回，然后重新开始这个步骤。

哈佛公开课 - 计算机科学课程节选

So says to this person, "Isn't it strange you have this dead-end job when you're twice as smart as your boss?

狗跟这个人说，”你不觉得很奇怪吗，你做这份没出头之日的工作,你的才智比你上司高一倍？

耶鲁公开课 - 心理学导论课程节选

And at the end of the process, by Bn, the body's dead.

在这个过程的最后,也就是Bn,身体死亡了

耶鲁公开课 - 死亡课程节选