Instead,they say it should be used as a way to get students to express ideas.

VOA: special.2009.10.29

You reach Egypt, and of course, Egypt is one of the great empires of antiquity going back into, perhaps, certainly into the fourth millennium, possibly into the fifth, by no means as powerful as it used to be, far from it.

你来到了埃及的领地,当然,埃及是古代最伟大的帝国之一,它有近四千年,甚至五千年的历史,毫无疑问,古埃及达到了空前绝后的强大

耶鲁公开课 - 古希腊历史简介课程节选

So it could be dangerous anywhere in New York. It's not as dangerous as it used to be.

所以，纽约的任何地方都可能有危险。现在没从前那么危险了。

这里不危险 - SpeakingMax英语口语达人

But Professor Gaechter says his team's theory was that punishment has only low costs because it needs to be used rarely and works as a threat.

VOA: special.2009.03.03

There's also a distant psychological relationship with it because we just aren't as concerned as people used to be about where it came from.

心理上的感觉也变得疏远,我们不像以前的人那样,关心食品源自何方

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

to fight terrorism He said it is time to move on, adding the nation will not be safe as long as national security is used as a wedge to divide America.

VOA: standard.2009.05.21

Humoral comes from the term humours and it used to be that we thought about disease as being caused by the balance of humours in our blood.

体液一词来源于体液学说,过去认为疾病的产生,与血中的体液平衡有关

耶鲁公开课 - 生物医学工程探索课程节选

And this is now a program that's web based, it's SMS based, it's voice based and it used to be Linux based as you'll see in a couple of weeks and it's just a program thatlet's you click where you are, click where you wanna go and voila, here are the next several shuttles that you can take.

这个程序现在是可以用网络访问的，可以用SMS的，可以用语音访问的,而且它曾经是Linux下的程序,你们几周后就会看到，它是这么一个程序,你可以点击确认你现在的位置,然后点你想要去的位置,然后程序会返回给你你能做的班车。

哈佛公开课 - 计算机科学课程节选