I think that it's true that the economy is difficult and there is a big challenge in front of us.
我认为经济形势确实很困难，我们面临着巨大的挑战。
He thought it was difficult for him to find one bone in such a big field.
他认为很难在这么大的田地里找到一根骨头。
Triggering a tiny earthquake is easy (see above about oil production), but triggering an earthquake big enough to matter would be extremely difficult.
引发小地震是很容易的(参见上述有关石油开采的内容)，但是引发大地震是极其困难的。
The likely answer is a little of both, but the question highlights how difficult it can be to have a perspective on what’s big and what’s small.
答案可能是这两种因素都有一点，但是这个问题突出显示了要区别什么是大什么是小这个问题有多难。
We face big and difficult challenges.
我们面临着巨大而困难的挑战。
Gome's big suppliers have pledged their support for the company. They would certainly not want to lose such a big distributor in today's difficult economic climate.
国美的大型供货商已表示，将继续为国美提供支持，在如今艰难的经济气候下，他们肯定不愿失去国美这样的大型分销商。
Sounds like a recipe for disaster, but it's understandably difficult to see the big picture when there are schedules to keep and bills to pay.
好像对灾难的解决方法，但是我们很难理解什么时候来保持这个日常安排或者什么时候来支付账单。
Having a century or more of experience is supposedly a big advantage for family firms in difficult times.
在这样艰难的时刻里，拥有一百多年的经验对于家族企业来说，本应是一大优势。
The idea of doing this has been around for years, but it has proved difficult in practice because the capsules used were too big.
这种构想已经现世好几年了，但是由于过去所使用的胶囊太大，在实践中应用起来难度很大。
And the big question: how difficult will it be financially for you to attend college?
最大的问题：上大学对你来说在财务上有没有困难？
Although it's possible to travel for free in a big city, it's damn difficult.
虽然在一个大城市里旅行是可能的，但这非常困难。
Developing this technology was difficult, but not as big a challenge as getting permission to use it.
技术开发是困难的，但是获许使用，则面临更大的挑战。
We are now at the point where the dimensionality and size of the data is a big problem. It makes things computationally very difficult to find these patterns we want to find.
他补充道，“在这里，数据的维数和容量是个大问题，要依靠计算来找到我们想要找寻的模式会变得极为困难。”
At this moment, our nation is facing a host of big and difficult challenges.
此刻，我们国家正面临诸多重大而困难的挑战。
And remember, this gap is growing despite big tax increases that are becoming more and more difficult.
而且，在大幅加税变得越来越困难之际，这一缺口在持续扩大。
During these socially difficult times, "people want to get excited about a big project and say: yes we can do that."
这个社会的困难时期，“人们期盼有个大工程同时说：是的，我们能做。”
In one sense, we've had to pay a heavy cost for our big, inefficient brains: Childbirth is difficult, childhood is long, and our brains consume 20 percent of the calories we eat.
脑袋大有大的难处。在某种意义上讲，为了这颗尺寸大，效率低的头颅，我们不得不付出沉重的代价：分娩是困难的，童年是漫长的，我们的大脑消耗掉百分之20我们吃进的卡路里。
The simple, easy and rough materials serve as the big base of pyramid, while the complex, difficult and subtle materials serve as the top of pyramid.
简单、容易和粗略就是金字塔庞大的基底，繁杂、困难和精细就是金字塔的顶部。
First, many people are inclined to write at too difficult a level, using big words and complicated structures for fear that others say they lack intelligence and literary talent.
第一，很多人倾向于使用一种比较难的水平来书写，用大词和复杂的结构，惟恐读信的人会觉得他水平不高。
It would be much too big and difficult to maintain.
这将使维护工作繁重而困难。
Filing things was a big hassle, and finding them was just as difficult.
文件归档是个大麻烦事，很困难。
Success isn't assured, of course. The technologies present difficult engineering challenges, and some require big scientific leaps in lab-created materials or genetically modified plants.
当然，这些技术并不一定能取得成功，它们目前都面临着不少难题，一些技术需要在实验室创造的材料和或转基因植物方面实现一些重大突破。
It's very difficult for broadband search engines to play a very big role in various areas of e-commerce.
宽带搜索引擎要想在电子商务的各个领域都游刃有余，是很难的。
The politics of the Big Society remain difficult.
然而为实现“大社会”而定出一个政策框架仍然困难重重。
Jump hook: a hook shot taken while jumping, popular among big men because it is difficult to block.
勾手跳投(jump hook)：起跳时的勾手投球，因为很难防守，所以在个子高的球员中特别流行。
Job takes a big part of our lives and sometimes it is difficult to turn off your work mode.
工作，在我们的生活中占有很大的比重，某些时候，我们很难改变自己的工作模式。
While our few big differences were difficult to swallow, I grew more concerned with making a living than with emulating my father.
然而我们那些极少的很大的差别很难掩饰。比起仿效我的爸爸，我变得更加担心生活。
But change is difficult and the last thing you want is some 'big bang'.
但这个改变是艰巨的，你最后需要的是一些‘大爆炸’。
But change is difficult and the last thing you want is some 'big bang'.
但这个改变是艰巨的，你最后需要的是一些‘大爆炸’。
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