Unless carbon emissions are brought under control,he says, the challenge of adapting to global climate change will become ever more difficult.

VOA: standard.2010.06.14

Also, shows you something about the challenge of it, because we are susceptible to attack from lots of different kinds of microorganisms.

同样也向你们展示这其中的一些挑战,因为我们也容易受到,各类微生物感染的危害

耶鲁公开课 - 生物医学工程探索课程节选

So I think that it's true that the economy is difficult and there is big challenge in front of us.

所以我觉得，目前的经济形势真的很困难，我们面临着很大的挑战。

事业就是挑战 - SpeakingMax英语口语达人

Edward Damiano, a biomedical engineer at Boston University in Massachusetts, knows firsthand the challenge of managing juvenile diabetes.

VOA: standard.2010.04.15

Of course, the particular problem of Ireland, the challenge of Ireland as I suggested earlier, has an awful lot to do with that.

特别是爱尔兰的问题,我之前提到的,来自爱尔兰的挑战,也与之也有很大关系

耶鲁公开课 - 欧洲文明课程节选

"It is the challenge of the 21st century," "We have to acknowledge, accept and work with it.

VOA: standard.2009.05.13

And there's something to be learnt from the challenge of that experience.

而同时从这些挑战中,我也能学到很多东西。

普林斯顿公开课 - 人性课程节选

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

VOA: standard.2010.05.30

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

Writer-director Richard Linklater believes any moviemaker would be daunted by the challenge of telling the story of the man behind the great American film Citizen Kane;

VOA: standard.2009.12.17

- Part of the challenge is speed, too, how quickly you can get these answers in terms of getting them in on time.

部分困难也会来自于速度，你多快能做出答案,能否在规定的时间做完。

麻省理工公开课 - 化学原理课程节选

"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

And we challenge ourselves to do the system design so that we responsibly took into account all of the dimensions that we talked about at the beginning.

我们通过做这个,制度设计挑战自我,以便于充分考虑,我们最初谈到的,所有方面。

麻省理工公开课 - 媒体、教育、市场课程节选

Mohamed Hussein Nur, who heads the Somali parliament's secretariat, says lawmakers in the overwhelmingly Muslim country are facing the challenge of developing a civil law consistent with Islamic Sharia law.

VOA: standard.2009.04.05

In these parts of the Politics Aristotle offers a serious challenge to existing Greek traditions and patterns of political education.

在这部份的《政治学》,亚里士多德对,当时的希腊政治教育传统与模式,提出严肃的挑战。

耶鲁公开课 - 政治哲学导论课程节选

And last June,says Sittenfeld, the House passed the American Clean Energy and Security Act, the first bill out of either chamber of Congress to directly take on the challenge of global warming.

VOA: standard.2010.02.25

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

In an opinion piece published in the Times of India newspaper she said the United States and India which have both experienced searing terrorist attacks should intensify anti-terrorism cooperation, and encourage Pakistan as it confronts the challenge of violent extremism.

VOA: standard.2009.07.17

He can reject the beauty of Homer, he can reject the beauty of Virgil, but he can also reject -- and this has got to be an even greater challenge, perhaps -- he can also reject the help of his Christian teacher, Edmund Spenser.

他可以抗拒荷马和维吉尔的文采之美，更加了不起的是，他可以抗拒,来自他基督教派的老师,埃蒙德·斯潘塞的帮助。

耶鲁公开课 - 弥尔顿课程节选

"The challenge of Iran truly today, has been revealed more than ever with their most recent missile test which has a capability of striking to the West as far as southeastern Europe,Turkey, but to the East could strike our allies in Pakistan,"

VOA: standard.2009.05.20

It never lost entirely its original character as an insurgent movement, independent of the state and hostile to it, making claims that challenge the secular authority.

它从来没有失去充满,反抗精神的本原色,它独立于国家并与之格格不入,公然向世俗权威发起挑战

耶鲁公开课 - 古希腊历史简介课程节选

"I think that the proposal that the President made in Geneva to have Iran withdraw its enriched uranium, or a good portion of it, outside Iran is a positive first step in that direction and I support and appreciate the President's ongoing efforts to unite the international community to address the challenge of Iran's attempts to become a nuclear military power,"

VOA: standard.2009.10.30

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

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

Our challenge is to find some other interpretation of the claim.

我们需要找到对这个说法的其他诠释。

耶鲁公开课 - 死亡课程节选

He says the biggest challenge is jobs the disabled have the lowest employment rate of any minority group in the country.

VOA: special.2009.08.15

The long-term fiscal challenge is largely a product of promises in our entitlement programs, medicare, medicate and social security that we have made the future generations that we cannot afford to keep.

长期财政挑战很大一部分原因,是我们承诺了很多津贴项目，我们承诺给下一代的,医疗保险和社会保险,而现在我们又没法兑现。

普林斯顿公开课 - 国际座谈会课程节选

Lawyer Paul Achitoff of the organization Earthjustice said: "We do expect to be able to challenge that decision before the district court."

VOA: special.2011.02.15

So literary can sometimes be very abstract like mathematics, and therefore, if someone says make me a movie, showing me what the square of minus two means that is going to be a challenge.

文学有时候也可以很抽象,像数学，因此如果有人说,给我做一部电影吧,给我展示一下负二的平方,那将是一个挑战。

麻省理工公开课 - 电影哲学课程节选

Let's see if we can do that, and it's a little bit of a challenge for the performer.

让我们看看能不能做到这个,对于表演者来说,还真是个挑战呢

耶鲁公开课 - 聆听音乐课程节选