He has not stepped back from his policy of seeking to work with Iran after thirty years without diplomatic ties.

VOA: special.2009.06.20

You know the heat isn't going to flow from a cold body to a hot body without putting some work in to make that happen.

大家知道热量不会自发地,从冷的物理流动到热的物理,除非对它做功。

麻省理工公开课 - 热力学与动力学课程节选

A vaccination, for it to work around the world, has to be inexpensive, transportable, possible to use without advanced medical personnel, and those kinds of things.

而疫苗接种,为了能适用于全世界,它必须便宜,便于运输,还要能在没有高级医生的情况下使用,它应该具有诸如此类的特点

耶鲁公开课 - 生物医学工程探索课程节选

Now,for this business to work, we must be able to produce a charming widow, with or without the beauty, as advertised."

VOA: special.2010.04.24

What is perfection? You don't have to work, you can eat without doing anything about it, you don't seem to do much of anything, which is fine.

完美是什么,无需劳作,不必为温饱而劳碌,几乎什么也不用做,那样也能过得很不错

耶鲁公开课 - 古希腊历史简介课程节选

It can provide thick green grass without the work or wait required to grow a lawn from seed.

VOA: special.2009.07.07

If Freud's argument for death, that is to say, none of us believe we're going to die, was any good, the argument that none of us believe meetings ever take place without us would have to work as well.

如果弗洛伊德对死亡的说法，也就是，人都不相信自己会死的说法是正确的，那么就是说没有人相信,自己不在场的会议举行这件事也是正确的。

耶鲁公开课 - 死亡课程节选

Also,because it is illegal to paint public and private property without permission, street artists usually work secretly.

VOA: special.2009.04.08

After two months without luck, Mister Shaw decided to work for free.

VOA: special.2009.04.03

"The whole thing we were trying to develop was about keeping alive and without any dilution the actors' work,"

VOA: standard.2009.12.19

But the government is stressing that countering the rebels will not work without efforts to simultaneously draw the tribal groups into the development process.

VOA: standard.2009.11.04