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.
要计算目前有多少滞销库存将被浪费是极其困难的。
It is incredibly difficult to calculate how much dead stock currently goes to waste.
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.
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.
在这种极其困难的情况下我们该怎么办呢?
改变饮食方式可以是极其困难的。
从越南回来是极其困难的。
控制情绪是极其困难的。
所以在这些北部道路上行驶是极其困难的。
So it's extremely difficult to ride on these northern roads.
基准测试是极其困难的。
这是一个极其困难的问题。
将这样一部强大的机器移走将是极其困难的。
Displacing such a formidable machine will be extremely difficult.
这是极其困难的。
对我们其他人来说，这并不是极其困难的一段时间。
That was not an immensely difficult time span for the rest of us.
没有你们的支持我绝不能完成这样极其困难的任务。
Without your support I could never have done this incredibly difficult task.
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.
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.
不过，在HDBMS中极其困难的事(几乎非常少)在RDBMS中的难度只是中等。
However, the things that are extremely hard in HDBMS (all but a very limited few) are only moderately hard in an RDBMS.
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.
当小鱼面临极其困难的问题时，比如说，突然遭到几个捕食者的袭击，他们会立刻形成鱼群。
When small fish face an extremely difficult problem-an attack, say, from several predators at once-they deal with it by forming a school.
他说，耶鲁以外的人要进入那个地方肯定是极其困难的，并非完全不可能，但极其困难。
'It certainly would be extremely difficult for someone from outside of Yale to get into that space. Not impossible, but extremely difficult,' he told the newspaper.
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.
当然，事实在于，优化网络以同时处理这些显著不同的数据分类即便可能，也是极其困难的。
The reality of course is that tuning the network to simultaneously handle these drastically different classes of data is extremely difficult, if not impossible.
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XSLT 1.0和XPath 1.0 中这不是不可能实现的，但都是极其困难的。
This was not impossible in XSLT 1.0 and XPath 1.0, but fiendishly difficult.
在XSLT 1.0和XPath 1.0 中这不是不可能实现的，但都是极其困难的。
This was not impossible in XSLT 1.0 and XPath 1.0, but fiendishly difficult.
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