与一些欧洲国家不同，一个身强力壮的移民要靠政府供养是极其困难的。
Unlike in some European countries, it is extremely hard for an able-bodied immigrant to live off the state.
重建过去的气候变化是极其困难的，因为在欧洲和北美，几个世纪前才开始系统的天气观测。
Reconstructing the climate changes of the past is extremely difficult, because systematic weather observations began only a few centuries ago, in Europe and North America.
人类用这种系统进行日常的数据组织和管理是极其困难的。
Such a system would be extremely difficult for day-to-day management and organization of data by human users.
要达成这个目标是极其困难的，因为两位老人罹患癌症，挨不到一年。
Achieving this goal, however, is complicated by the fact that both men are diagnosed with cancer and given less than one year to live.
然而，要通过一两个关键字来表达内容是极其困难的，特别是使用横向导航。
However, it's quite hard sometimes to communicate the content of a website's section with just one or two keywords, particularly if horizontal navigation is used.
从根本上，他相信，创造出坚不可摧的彩票是极其困难的，如果不是不可能的话。
Fundamentally, he believes that creating impregnable tickets is extremely difficult, if not impossible.
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。
Triggering a tiny earthquake is easy (see above about oil production), but triggering an earthquake big enough to matter would be extremely difficult.
多数情况下，对机械零件的模糊失效概率模型用解析法求其模糊失效概率是极其困难的。
It is mostly very difficult to calculate fuzzy failure probability of mechanical parts by using analytical method according to the model of fuzzy failure probability.
鉴于河型是流域因素综合作用的产物，其成因要概化成数学物理模式求解是极其困难的。
Since river channel patterns are the results of the combined action of the watershed factors, it is very difficult to solve its cause of formation with generalized mathematical or physical model.
欲占一切有利条件，追求完美爱情婚姻，在现实中是极其困难的，除了极少数幸运儿以外。
It is pretty much difficult to pursue perfection of marriage by boasting all the beneficial conditions, except for a few fortunate ones.
将数据从一个地方移到另一个地方，从一种格式转化成另一种格式，要保证数据不被改变是极其困难的。
It's actually extremely difficult to make sure that data isn't changed as it is moved from place to place, and from format to format.
在上述情况下，调度员要在很短的时间内处理众多信息并准确地判断出故障根源是极其困难的。
In these situations, it is extremely difficult for an operator to digest information and hence identify what has happened in a short time.
如果说有任何收获的话，那就是这个实验证明，要在无人驾驶汽车的道德上达成共识是极其困难的。
If anything, this experiment demonstrates the extreme difficulty of reaching a consensus on the ethics of driverless cars.
想要给本杆中的白色闪耀握柄拍摄清晰照片是极其困难的。以下这些照片不足以展示这根球杆的精美。
It is extremely difficult to take clear pictures of the white and very shiny handle. Here are photos, but they do not show-case this fine cue properly.
正如Benjamin所指出的，问题是对各式各样的MIME类型的全盘采用是极其困难的，而且不能扩展。
The problem as Benjamin points out, is that getting universal adoption of various MIME types is extremely difficult and doesn't scale.
要改变组织中的此类糟糕的敏捷性是极其困难的，因此要保护您自己，并保留有关您的时间都花在何处的书面文档。
It's extremely difficult to change this type of poor agility in an organization, so protect yourself and keep written documentation of where your time is being spent.
我们收到了上百个出类拔萃的申请，要从这么多令人感到欢欣鼓舞和应该得到奖励的学校中作出抉择是极其困难的。
We received hundreds of outstanding applications, and it was incredibly difficult to choose from among so many inspiring and deserving schools.
夺走他们的文化是极其困难的，但当你一旦失去了自己的文化，我想，你也就失去了自我意识，无论是作为个人、社团还是国家。
It's very hard to take away their culture. But if you lose that, I think you lose a whole sense of self - individually, as a community and as a nation.
夺走他们的文化是极其困难的，但当你一旦失去了自己的文化，我想，你也就失去了自我意识，无论是作为个人、社团还是国家。
It's very hard to take away their culture. But if you lose that, I think you lose a whole sense of self -individually, as a community and as a nation.
摆在俄罗斯的欧洲商人面前的巨大困难是极其明显的。
The immense difficulties facing European businessmen in Russia were only too evident.
作为一名芭蕾舞女演员，体现天鹅女王和黑天鹅的二元性可能是一项极其困难的任务。
As a ballerina, to embody the duality of the Swan Queen and the black swan can be a fiendishly difficult task.
当然，事实证明让计算机来处理自然语言是件极其困难的事情。
Of course, getting computers to deal with natural language has turned out to be incredibly difficult.
我访问了亚洲和非洲仍然流行脊髓灰质炎的四个国家，以亲眼观察正在作出的巨大努力，而这些努力往往是在极其困难的条件下作出的。
I have visited each of the four remaining polio-endemic countries, in Asia and Africa, to observe first-hand the tremendous efforts being undertaken, often under very challenging conditions.
预测一个人在接下来的两年里跑步能有多快极其困难的，尤其是当这个人现在正躺在一家医院的重症监护病房的时候。
Predicting how fast a person will be jogging two years hence is tricky, especially when that person is currently flat on his back in a hospital's intensive-care unit.
或许这看起来是违反直觉的，但如果在你开始还清债务前你没有储蓄，在对付一些意料之外的花费时，你将极其困难。
This may seem counter-intuitive, but if you don't save before you begin paying down debt, you'll struggle to cope with unexpected expenses.
“完全解耦是极其困难和昂贵的，否则就是不可能的，”Ron Schmelzer如是说到，他是ZapThink的高级SOA分析师。
"Complete decoupling is incredibly difficult and expensive, if not impossible," says Ron Schmelzer, senior analyst from the SOA analyst firm ZapThink.
这些人回国的原因是由于遇到了美国签证政策的阻碍，因为美国的签证政策让这些来自人口大国的科技人才要想在美国获得永久性居住签证变得极其困难；
They are returning because of frustrations with U. S. visa policies that make it extremely difficult for skilled workers from high-population countries to obtain permanent-resident visas;
这些人回国的原因是由于遇到了美国签证政策的阻碍，因为美国的签证政策让这些来自人口大国的科技人才要想在美国获得永久性居住签证变得极其困难；
They are returning because of frustrations with U. S. visa policies that make it extremely difficult for skilled workers from high-population countries to obtain permanent-resident visas;
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