Ten children ages eight to fourteen were in New York recently for the finals of this year's Discovery/3M Young Scientist Challenge.

VOA: special.2009.10.15

All right, so implied consent. That's a partial answer to this challenge.

好，默认的同意，部分解答了这个问题。

耶鲁公开课 - 公正课程节选

Realize that there's an inevitably challenge for us and actually helping people in this kind of context, especially as the deadline really approaches.

这对我们来说是一个不可避免的挑战,需要在这种环境下帮助人们，特别是当最后期限要接近了。

哈佛公开课 - 计算机科学课程节选

"This has clearly been a systemic challenge for financial stability in the euro area.

VOA: special.2010.05.14

And scientists have been working on this for years and there's been progress, but it's still a very difficult challenge.

科学家们对此已经研究很久了,并取得了进展,但仍有很大挑战

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

It is expected that Democrats will have a tougher challenge in motivating their supporters to get out to vote this year.

VOA: standard.2010.05.04

So the challenge thing comes back to the instruction of designer: what are you for on this access?

这样，教育设计者,又重新面临着挑战：,你会支持这项技术吗？

麻省理工公开课 - 媒体、教育、市场课程节选

"The most urgent challenge facing this body today is to prevent the tyrants of Tehran from acquiring nuclear weapons.

VOA: standard.2009.09.24

So in retrospect, I think the way to deal with crisis, deal with challenge, deal with difficult times, is like this: First, you need to be realistic.

回首去年，我们应对危机，面对挑战时，所采取的方法就是：,首先，要变得现实一些。

斯坦福公开课 - 百度CEO李彦宏演讲：全球最大搜索引擎的发展课程节选

We need to challenge governments, decision-makers and community leaders to stand together to fight TB and eventually wipe out this devastating disease."

VOA: standard.2010.07.12

And,of course,the challenge -- so this is the latter part of the course-- is what do you do with this and Europe?

当然,质疑是,这部分会在日后课程提到,即该如何处理这和欧洲各国的关系

耶鲁公开课 - 1871年后的法国课程节选

This time round, this is a direct challenge to what they see as unfairness, as injustice and inequality."

VOA: standard.2010.05.19

But the same challenge could be put to this part of Mill's defense.

但穆勒的这番辩护面临着同样质疑。

耶鲁公开课 - 公正课程节选

He says fighting traffic congestion, he adds,is an on-going challenge because this urban area continues to attract more jobs and more people.

VOA: standard.2010.07.26

Glaucon This is the challenge that Glaucon poses to Socrates.

这是,抛向苏格拉底的战书。

耶鲁公开课 - 政治哲学导论课程节选

The national security challenge comes at a difficult time for Mr.Obama, who later this month will mark his first year in office.

VOA: standard.2010.01.06

The other threat is eonomic, and all the economic issues are tied in my judgement, to the same core problem which is the long-term fiscal challenge that this country faces.

另一个威胁是经济方面的，我认为所有的经济问题,都和一个核心的问题分不开,就是我们国家面临的,长期财政挑战。

普林斯顿公开课 - 国际座谈会课程节选

"Rome" and "Big Love." Poul says his challenge was to balance the expectations audiences have for this genre.

VOA: standard.2010.04.30

We are living in very unusual times and I am sure that Ben Bernanke and other central bank presidents are losing sleep right now because this is a time to challenge monetary policy makers.

我们现在正生活在一个非常特殊的时期,并且我很肯定本？伯南克,和其他中央银行行长们,正在日夜担忧，因为,现如今是一个挑战货币政策制定者的时代。

耶鲁公开课 - 金融市场课程节选

"I think the world need to understand that this is the new challenge of the 21st century, and this is the new war,"

VOA: standard.2009.05.10

So let me challenge you with this: inside of these curly braces where I have put a comment with slash slash -- a "comment" means nothing here gets compiled, it's just for the human to read.

让我用这个来挑战你们：,在这些花括号里面，我通过双斜杠写入了一个注释,-一条“注释“在这里不会被编译,它只是用来我们阅读的。

哈佛公开课 - 计算机科学课程节选

But,it says wiping this deadly disease from the face of the earth poses a formidable challenge.

VOA: standard.2010.05.21

So we said we will accept the challenge of raising up this program here in Kenya."

VOA: standard.2010.05.30

This group of doctors meets annually to challenge medical autopsies of famous historical figures.

VOA: standard.2010.06.09

"This is the challenge we have now: to open a lot of those doors."

VOA: standard.2009.08.15

"We recognize that as we move ahead there are huge challenges ahead of us, particularly the challenge of overcoming the divisions that have occurred in this country.

VOA: standard.2010.05.21

Noeleen Hayzer,executive secretary of the UN's Economic and Social Commission for Asia and the Pacific (UNESCAP) says climate change remained "the biggest challenge faced by this generation."

VOA: standard.2009.09.01

"Like the young people, this is a challenge to do in his life,".

VOA: standard.2009.11.08

We want it to emerge from this period of challenge stronger,".

VOA: standard.2009.03.30

One of the most closely watched cases this term will be heard early next year when the high court considers a challenge to gun control laws in the city of Chicago.

VOA: standard.2009.10.05