He says if those with the least pollution start doing the most, rich nations will not have an excuse for inaction.

VOA: standard.2009.11.09

It's not as though we think that if you start opening up the body you'd finally find the particular spot.

但不是我们想的那样,只要打开你的身体,就能在其中找到一个特定的位置

耶鲁公开课 - 死亡课程节选

So, if you're looking for another reason to quit, if you're looking for a reason not to start smoking, here's another good one.

因此，如果你正在寻找戒烟的另一个理由，如果你正在寻找一个不开始吸烟的理由，这就是很好的一个。

麻省理工公开课 - 化学原理课程节选

Some analysts are warning of dire consequences for both Israelis and Palestinians if Mr.Netanyahu's government does not relent and start working toward a two-state solution.

VOA: standard.2009.04.09

So each of these cups again have different weights if I want to find the lightest of them I might start not knowing which is which.

它们的重量互不相同，如果我要,找出最轻的一个，而我根本不知道会是,哪一个。

哈佛公开课 - 计算机科学课程节选

If things do not get better soon, he thinks the riots will start again.

VOA: standard.2010.04.20

if you really have some trouble with DVD then Ok, put it in and if I'm not back start it anyhow and I'll try very hard to be here in the meantime,could you make out the card

如果有什么问题的话,如果我没及时赶过来的话，下次把它先放一下,无论如何把它放了，我下次也尽量赶过来,啊，你看一下这个卡

麻省理工公开课 - 电影哲学课程节选

"I am not ready for tomorrow. I am ready for yesterday. If you wanted to start your World Cup yesterday, I would have said I am ready."

VOA: standard.2010.06.02

And if we have time today, we'll start in on the photo-electron spectroscopy, if not, that's where we'll start when we come back on Wednesday.

而且如果我们今天还有时间，我们将会开始光电子频谱，如果没有,我们将会在下周三回来时开始。

麻省理工公开课 - 化学原理课程节选

And,the country should not do that because if the country starts to do this, any terrorist in the world could start hijacking somebody and then our country would be forced to make concessions."

VOA: standard.2009.08.23

You're not going to start for the rest of your life if you ever need to solve a problem with a computer from scratch, odds are you're going to reach for some off the shelf packages or libraries or tools that other people wrote so that people like us don't have to reinvent the wheel again and again.

如果你想用Scratch来解决问题,却使用其他人写的程序,或者利用现成的资料或工具,这样以来,我们的确可以避免做重复性的工作,但却永远学不会编程。

哈佛公开课 - 计算机科学课程节选