This afternoon my school held an English-speaking contest named"Challenging the Future" in the multi-function classroom. The students who are excellent at English took part in the contest.

今天下午我们学校在多功能教室举办了英语演讲比赛，它的题目为 罗“挑战未来”。

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The dream of everyone who works for WWF is very challenging to achieve, but very simple in concept: a future in which people live in harmony with nature.

提克纳说，他的梦想也是世界自然基金会每位工作者的梦想，说来简单，做起来却颇具挑战性：人与自然在未来能和谐相处。

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The same psychologists discovered that people who imagined an uncertain and challenging future were much more energized and likely to succeed than the ones who idealized their future.

同一个心理学家发现，一个幻想不确定的、具有挑战性的未来的人更能被激发，也比那些理想化自己未来的人更容易成功。

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In our opinion, the overall operating environment in Indonesia for Newmont is likely to be quite challenging for the foreseeable future.

FORBES: Newmont Mining's Rocky Year And The Way Forward

Combining unstructured and structured data will deliver insights, intelligence and actionable guidance that are going to make the most challenging goals today more achievable in the future.

FORBES: Connect

Or is Britain already so far down that road that the Tories' future lies in accepting the inevitable, and switching their grounds for challenging the government to some area of domestic policy?

ECONOMIST: British election briefing: Introduction