It is known that pollution is a long-term problem, and no single government can meet the challenge alone.

众所周知，污染是一个长期问题，没有任何一个政府能够单独应对这个挑战。

youdao

The challenge of accurately estimating cost and schedule is certainly part of the problem.

精确评估成本和日程的挑战已经成为主要的问题。

youdao

Analyze how your skills and experience could solve a specific problem or challenge they're facing.

分析自己的技能和经验能为解决他们的具体问题和挑战带来什么样的帮助。

youdao

A challenge that affects parents, children and citizens in almost every community in America should not be a Democratic problem or a Republican problem.

VOA: special.2010.08.12

And so if you choose to elect the hacker edition of this week's problem set the challenge will be to figure out not only how to implement the game but how to implement a solver for the game.

因此，如果你选择这周的应用题目为升级版,那么你将面临的挑战,不仅是如何实现这个游戏，而且,要实现此游戏的解决方法。

哈佛公开课 - 计算机科学课程节选

That's one challenge and we'll talk about ways to think about engineering approaches to solve that problem.

该问题一直很具挑战性,我们会讲到,如何用生物医学工程的方法来解决它

耶鲁公开课 - 生物医学工程探索课程节选

Will the vast majority of people, given the freedom to make their own choices, respond to the challenge and solve the problem?

FORBES: You're on Your Own

The problem for us is how do we get those people to recognise that the Conservative Party is relevant again and what I will do is say to my party, we now must be obsessed with the issues that obsess British people, health, education, the environment, the things that they think that for too long we don't care about and that's the real problem and challenge.

BBC: News | BREAKFAST WITH FROST | Conservative leadership contender Iain Duncan Smith

These stories reveal what we can accomplish through readiness and collaboration, and underscore that in America, no problem is too hard and no challenge is too great.

WHITEHOUSE: The White House