This level of wastage is a tragedy that cannot continue if we are to succeed in the challenge of sustainably meeting our future food demands.

这样的浪费水平是个悲剧，如果想在可持续满足我们未来粮食需求的挑战中取得成功，就不能让它继续下去。

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That's the challenge that traditional luxury brands will have to contend with in the mid-to long-term future.

这是传统奢侈品在中长期的未来不得不应对的挑战。

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She planned to challenge more new things outside volleyball in the future.

她计划在未来挑战更多排球以外的新事物。

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We need to get better at launching ideas." The challenge is convincing the people in member countries, particularly in Western Europe, that what NATO does is important for their future.

VOA: standard.2010.06.11

There's no vision to it." "There's no goal. There's no challenge." "Obviously there are a lot of people that are unhappy about the potential of altering the future of space flight."

VOA: standard.2010.04.15

Even if U.S.economic output expands in 2010 and more Americans head back to work, both critics and supporters of the president say the nation faces a more serious challenge to future economic viability: a rapidly growing deficit and a national debt estimated at more than $12 trillion.

VOA: standard.2010.01.15

But what does truly challenge the future of the naval services is the mindless pursuit of zero-tolerance.

CENTERFORSECURITYPOLICY: Ex-Secretary of the Navy John Lehman: In Praise of Swagger

It's an era that is unfortunately and fortunately over, and we just have to face the challenge of the future.

NPR: Roundtable: Chrysler's Deep Cuts, 'Rebranding' Africa

The NSBA survey found that 68% considered economic uncertainty to be the biggest challenge to the future growth and survival of their business (not a great shocker in an election year).

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