汤丹难选氧化铜矿的选矿是一个世界难题。
The mineral processing of Tangdan refractory copper oxide ores is a worldwide difficult problem.
同年，他的第二本书《世界难题的解决方案》总结了面对人性时的巨大挑战。
That same year, his next book Solutions for the World's Biggest Problems was released, which provided a summary of the greatest challenges facing humanity.
去年十一月份扎克伯格女儿麦柯斯的出生促使这对亿万富豪夫妇捐献出几乎全部财产，用于解决世界难题。
It was Max's birth last November that inspired the billionaire couple to give away nearly all their money to help solve the world's problems.
这里最大的难题就是灌溉，因为这消耗了世界上70%的淡水。
The biggest challenge here is irrigation, which consumes 70% of the world's fresh water.
当市场和世界形势发生变化时，我们正在做的事情就会变得没有意义，这时候我们也会面临那样的难题。
We're going to have questions like that where we have things we're doing that don't make sense when the market changes and the world changes.
但当市场和世界形势发生变化时，我们正在做的事情就会变得没有意义，这时候我们也会面临那样的难题。
But we're going to have questions like that where we have things we're doing that don't make sense when the market changes and the world changes.
科学来自世界各大制药公司攻克这一难题的飞跃性进展。
The science has come from the world's pharmaceutical companies, which leapt on the problem.
世界已掌握解决这些难题的专门技能 ，能够更好地管理水资源。
The world has the know-how to solve these challenges and become better stewards of our water resources.
但是，在真实世界中墙的表面不是绝对平的，如何避免机器人靠向墙壁或离墙太远本身就是个难题。
In the real world with its imperfect surfaces, getting your robot not to veer into the wall on its left or veer too far away from that wall is quite a challenge in itself.
当我们睡梦中，很可能我们的大脑会为现实世界中的行动提前做解决难题的演练。
It's possible that while we sleep, the brain is practicing and running problem-solving drills before completing actions in the real world.
罗塞夫女士承诺尽管有许多难题和延误，但是举办世界杯所需的新体育馆和其他的实施会准时建好。
Ms Rousseff promised the new stadiums and other infrastructure required would be ready on time, despite major difficulties and delays.
放松点——没有人期望你能回答出所有的问题，或是解决世界上所有的难题。
Relax-you are not expected to have all the answers or to have already solved world problems.
开始将有关现实世界事物（如人）的数据输入计算机系统时，您会碰到为每样事物创建一个唯一的名称这一难题。
When you start entering data about real-world things, like people, into a computer system, you come up against the difficulty of creating a unique name for each thing.
如果他们不这样做，其结果可能是世界上较大的金融难题之一。
If they do not, the result may be one of the world's bigger financial headaches.
如何能使这些玩家的努力用于解决现实世界的难题？
How could these gamers' labors be used to solve real-world puzzles?
但是，意大利是欧元区最大的债务国，以现在的可用资源难以帮助其摆脱困境。这不仅仅是蒙蒂的难题，也是欧元区和整个世界的难题。
The problem—not just for Mr Monti, but for the euro zone and the world economy—is that Italy, the zone’s biggest debtor, is too large to be bailed out with the resources currently available.
我们要推进的关键难题是，如何扩大造福于世界上最贫穷农民和社区的项目规模。
A key challenge moving forward is how to scale up programmes that benefit the world's poorest farmers and communities.
正如很多目前其他的经济学难题一样，收入从劳动力到资本的重新分配很大程度上被解释为是由于中国，印度和其他新兴经济体进入了世界市场。
Like so many other current economic puzzles, the redistribution of income from Labour to capital can be largely explained by the entry of China, India and other emerging economies into world markets.
在80年代后期开始于ibm，深蓝色的项目是一个运用多重处理解决一个难题的尝试-即，击败了世界上最好的棋手，加里·卡斯帕罗夫。
Begun at IBM in the late 80's, the Deep Blue project was an attempt at using parallel processing to solve a difficult problem - namely, beating the best chess player in the world, Garry Kasparov.
马戏团在为蒙古首都乌兰巴托为期一周的马戏表演做准备时，遇到了一个难题：怎样才能让这两只亚热带的动物在这个世界上最为寒冷的国家仍然保持兴奋状态呢？
As the circus prepared for a weeklong program in Mongolias capital Ulan Bator, they faced an awkward problem how to keep the two tropical animals happy in one of the worlds coldest environments.
我看到，许多评论出于良好的愿望，希望中国站在世界舞台的中心，发挥顶梁柱的角色，帮助世界解决一些难题。
A lot of commentators make the well-intended point that China should play a bigger. even a central role in helping the world resolve some of the thorniest issues.
奥巴马说：“以往面对类似全球性经济难题时，世界反应迟缓，人们付出了巨大代价。”
"Faced with similar global economic challenges in the past, the world was slow to act, and people paid an enormous price," said Mr. Obama.
虽然气候变化最近已经作为一个世界性难题提上议程，但这并非学者们第一次考虑化石能源和人体脂肪之间的联系。
Although climate change has come into the forefront as a major world problem recently, this is not the first time scholars have thought about the connection between fossil fuel and body fat.
把文明建立在地下碳储备上，显然是世界面临的能源未来难题。
Establish the civilization in the underground carbon, apparently reserves, facing the world energy future problems.
跨洋海底光缆传输系统的生产、维护和运行是一个世界性难题。
Trans-Pacific submarine cable transmission system of production, maintenance and operation of a worldwide problem.
跨洋海底光缆传输系统的生产、维护和运行是一个世界性难题。
Trans-Pacific submarine cable transmission system of production, maintenance and operation of a worldwide problem.
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