Iqbal Khattak, a Peshawar-based journalist for the Daily Times newspaper, says for the army to be successful in South Waziristan, it will also be crucial for it to exploit tribal tensions that exist between the Mehsuds and Wazirs, the two major clans in the region.

VOA: standard.2009.06.18

Nabokov cannot meet his reader on the misty mountain ; because somebody has to agree to publish this book first; it has to exist in the world before that reader can meet it.

然而纳博科夫却不能在这座巅峰上与他的读者相遇,因为在那之前必须有人先同意出版那本书;,在读者遇到那座山峰之前，它必须首先存在。

耶鲁公开课 - 1945年后的美国小说课程节选

It is nevertheless a distinction that does exist, once you think about it, that deserves to exist and deserves to be remembered when we think about the variety of ways in which literary history can be written.

但是这区别既然存在，只要你思考它，它就有存在的理由,值得被记住，并被记录到,文学的无限发展可能的历史中。

耶鲁公开课 - 文学理论导论课程节选

And of course even if in many cases, the engine continues to exist for a while, after the destruction of the car, certainly it doesn't follow the engine is immortal that continues to exist forever.

当然，即使在许多情况下，发动机在汽车毁坏后，能继续存在一段时间，但当然不能得出结论说,发动机是不朽的会永远存在下去。

耶鲁公开课 - 死亡课程节选

He eventually switched; his New York this happened in many regiments in the Civil War it took so many casualties it ceased to exist and he switched to a Connecticut regiment and he served that Connecticut regiment through the summer of 1864.

他最终换了军队,内战期这很平常,他所在的纽约军队伤亡惨重,全军覆灭,他来到康乃狄格军队,他一直在此服役,度过了1865年夏

耶鲁公开课 - 美国内战与重建课程节选

The fascinating part about this layer is that it solves the problem for phospholipids about how to exist in water when half of you wants to be in oil, and that the water soluble part of the top leaflet here, of the top points up into the water, and the fatty acid chains point down.

这层膜的迷人之处在于,它解决了磷脂,如何存在于水中和油脂中的问题,水溶性的顶端部分,向上插入水中,而脂肪链则指向下

耶鲁公开课 - 生物医学工程探索课程节选

So what actually turns out the reality is that h e 2 does exist, but it exists as the weakest chemical bond known, and it wasn't, in fact, even found to exist until 1993, so I can assure you this is not a bond that you see very often in nature, and it is a very, very weak bond.

实际上He2键是存在的，但它是目前所知的最弱的键，直到1993年它才被发现，所以我可以向你们保证在,自然界你们不可能经常看到它，它是种非常非常弱得键。

麻省理工公开课 - 化学原理课程节选

Because,indeed,they don't exist They're merely possible And we might say,you've got to exist in order for something to be bad for you But once we say that it seems we're running towards the position that in that case,death can't be bad for me because of course,when I'm dead,I don't exist ? So how can anything be bad for me?

因为他们其实并不存在,他们只是一种可能,我们由此认为你必须首先存在,某事才会让你害怕,但我们一旦这么说,我们似乎会得出这个结论,这种情况下死亡不可能让我害怕,因为我死了就不存在了,所以我怎么会害怕？

耶鲁公开课 - 死亡课程节选

If I can tell a story in which A exists and B doesn't exist, it's got to follow that A and B are not the same thing.

如果我跟你说A存在但B不存在,就可以得出结论A和B不是一个东西

耶鲁公开课 - 死亡课程节选