The other big challenge for employers is burn-out, especially for the supposed victors of the winner-take-all markets who are expected to be "always on".

对于雇主来说，精力用尽是一大挑战，对于有望在赢家通吃的市场获胜的人来说更是如此——这类人总指望能“忙个不停”。

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So the real challenge is not only to control what comes out of your mouth, but to take control of your thoughts.

因此真正的挑战不仅仅是你能否控制自己的说话，而是你能否控制自己的思想。

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I kept the little mirror, and as I grew up, I would take it out in idle moments and continue the challenge of the game.

我一直保存着这面小镜子。在我的成长历程中，每当我无聊的时候，我就把它拿出来继续玩这个游戏。

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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 Maccarinelli is ready to take up the challenge and step out of Calzaghe's ominous shadow when he fights Afolabi on the undercard of Amir Khan's clash with Marco Antonio Barrera in Manchester.

BBC: Maccarinelli inspired by Calzaghe

King decided to take up the challenge after Riggs had come out of retirement at the age of 55 to beat another top female player, Margaret Court, a result he claimed proved the inferiority of the women's game.

CNN: STORY HIGHLIGHTS

"What's exciting about Ord is that one can see the local leadership emerging to go out and challenge people in the community to take control of the future, to invest in entrepreneurship, small business, " says Chuck Hassebrook of the Center for Rural Affairs in Walthill, Neb.

NPR: The New Homestead Act