Ancient cultures broke off pieces of obsidian to make knives and weapons such as arrows.

VOA: special.2009.09.16

So let's try and get some kind of I'll come off the stage to make it easier for Jude.

所以我们也回头看看,我走下讲台以方便裘德拍摄

耶鲁公开课 - 博弈论课程节选

Make sure the gas is turned off.

一定要把煤气关了。

Make sure 课堂 - SpeakingMax英语口语达人

Officials would order all lights in a city turned off to make it difficult for enemy planes to find a target in the dark of night.

VOA: special.2009.11.15

But Israel is the one to affirm its holiness by observing the rules that make it different, that mark it off as holy.

然而以色列通过观察那些使之与众不同的,使之神圣的规则，肯定了它的神圣性。

耶鲁公开课 - 旧约导论课程节选

Captain Sullenberger walked through the plane twice to make sure everyone was off.

VOA: special.2009.01.30

And you're not counted off for errors that you make in writing, either, if you're writing in French; and it really rocks, trust me.

你在写作里有错,也不会扣分的,如果你用法语写的话,而且这么着可带劲了,真的

耶鲁公开课 - 1871年后的法国课程节选

Fraud,insecurity and the weather all threaten to make next month's run-off elections difficult for one of the world's newest democracies.

VOA: standard.2009.10.21

They love to kind of luxuriate in the opportunity to show off their voice on a leading tone, build up expectation, make you wait even more for that tonic.

他们总是喜欢借机,在导音部分卖弄下自己的歌喉,以增加听众的期望,让大家更渴望听到主音

耶鲁公开课 - 聆听音乐课程节选

The FBI says the smugglers often threaten their victims and make it difficult for them to pay off their debts.

VOA: standard.2010.05.24

Now, in stating this view this way, I'm obviously presupposing that we can make these kinds of, at least, overall judgments in terms of the quality of your life, how well off you are.

经过这样审视这个观点，显然我是事先假设了我们能够做出,起码是对生命质量,做出一般性的判断，你有多幸福。

耶鲁公开课 - 死亡课程节选

The president said both leaders will need to end delays and make sacrifices to revive the peace talks that broke off in 2008.

VOA: standard.2009.09.22

What if we have a case where making an exception and violating individual rights actually will make people better off in the long run?

如果有个特例,侵犯个人权利,长远来看，反而让人们获益更多呢？

耶鲁公开课 - 公正课程节选

"It is a lot easier for firms to make the decision not to lay someone off than it is actually to decide to take someone on,"

VOA: standard.2009.11.06

They plug it in and make a keystroke error right off the bat.

乘完了,正好砸出击是出了一个按键错误。

麻省理工公开课 - 固态化学导论课程节选

But a few days ago, he told NBC television that he might not make an announcement until after the Afghan presidential run-off election scheduled for November 7.

VOA: standard.2009.10.26

There are successful coupon clippers and there are successful securities resellers and they tend to make their money off of the unsuccessful people in the other class.

既有成功的票息剪券投资者,也有成功的债券经销商,他们希望从其他阶层,不太成功的投资者身上赚钱。

耶鲁公开课 - 金融市场课程节选

make sense to people. It was like an alarmwent off in my head.

VOA: standard.other

All right, turn them off. If they have to make noise as you turn them off, turn them off, but that's it. So, when you walk through that door, it's an act of free will.

好了，把它们关掉，如果一定要发出声音,当关机的时候，也要关机，就这样，当你走进那扇门，这是自由意志的选择。

麻省理工公开课 - 固态化学导论课程节选

So, they created Wall Street Journal Online, which is WSJ.com, and they were trying to make money off of that, but people weren't willing to pay for it.

并且他们创建了《华尔街日报在线》,WSJ.com,尝试从那赚钱,但是人们不愿花钱

耶鲁公开课 - 金融市场课程节选