The difficulty of a problem was defined in terms of how long it took to complete.
问题的难易度是以解决这个问题所花时间的长短而定的。
For a long time, researchers tried to get round the problem by attempting to re-create the visual processing that goes on in the human cortex.
在很长一段时间里，研究人员试图通过重现人类大脑皮层的视觉处理来绕过这个问题。
It is known that pollution is a long-term problem, and no single government can meet the challenge alone.
众所周知，污染是一个长期问题，没有任何一个政府能够单独应对这个挑战。
VAT fraud, in which tax is charged as part of a transaction but not surrendered to any government, has long been a problem in the market.
增值税欺诈一直是该市场的一个问题，它是指税赋已经作为交易的一部分征收，但并未向任何政府上缴。
I have been pondering over this problem for quite a long time but still couldn't puzzle it out.
我想这个问题想了很久，但还是想不出答案。
The problem is "decision fatigue", a psychological phenomenon that takes a toll on the quality of your choices after a long day of decision making, says Evan Polman, a leading psychologist.
著名心理学家埃文·波尔曼表示，这其中反映的问题就是“决策疲劳”，即在经过漫长的一天的决策后，对决策的质量产生负面影响的心理现象。
Air pollution will remain a problem for a long time, though we have done a lot to solve it.
尽管我们已经做了很多工作来解决空气污染问题，但它在很长一段时间内仍将是一个问题。
Or, the overall health or performance of the system might degrade slowly over a long period before it finally leads to a serious problem.
或者，系统的整体运行状况或者性能随着时间的推移可能会慢慢地下降，直到最后导致出现严重的问题。
This limitation isn't a problem as long as you only apply the technique selectively in cases where reflection performance is really a bottleneck.
如果选择只在反射性能真正成为瓶颈的情况下才使用这种技术，那么这种限制就不是一个问题。
But that glosses over a long-term structural problem which makes them more of a burden than a benefit to the national economy.
但该测试对困扰银行，令其成为国家经济负担而不是有利助力的结构性问题避而不谈、敷衍掩饰。
At this point you might be thinking that there is a major problem with both long polling and streaming.
至此，您可能会想，长轮询和流都有一个很大的问题。
"If we had a million dollars in the bank, this problem would have been solved a long time ago," he says.
“如果我们在银行中有一百万美元，这个问题早就得到了解决，”他说。
So what is the world to do with a problem that has long vexed the major powers without a hint of resolution?
那么，世界如何处理这个长期困扰大国、但毫无解决迹象的问题？
I've been working on this problem for a long time. But I still can't work it out.
我在这个问题上花了很长时间。但是还是解决不了。
As noted in the report, lack of resources has been a long-standing problem for an initiative that aims to reach large Numbers of very poor people.
正如报告所指出的那样，缺少资源是那些旨在影响到大量极为贫困人员的行动所遇到的一个长期问题。
So part of this is a long-term problem: We have to enhance education from grade school all the way up so that the population becomes more competitive as a labor force.
所以它也包含一个长期问题：我们要从小学一直到顶的加大教育力度这样我们人口作为劳动力就更有竞争力。
Nowadays, nearly every time I see a brilliant, innovative solution to a long-standing health problem, I see the initial optimism and enthusiasm fade when it faces the harsh reality.
我注意到，目前，对长期卫生问题的高明、新颖的解决办法一旦遇到严酷的现实，几乎毫无例外，最初的乐观和热情就会消退。
Now, I realize that simply kicking these cuts down the road another year is not a long-term solution to this problem.
现在，我意识到一年一年的简单地推迟这些削减计划不是解决问题的长远之计。
This is not a problem as long as these element types exist only in separate documents.
只要这些元素类型只出现在不同文档中就没有问题。
Low swap values indicate that you are running out of swap space, which doesn't necessarily show a problem, as long as you have enough RAM to run the applications.
较低的交换值表示即将耗尽交换空间，这并不一定表示存在问题，只要您拥有足够的RAM来运行相应的应用程序。
Arguing that we are going to spend more money to solve this problem is acting like we are in an aggregate demand problem when we are in a very long-term growth problem.
在这争论我们是否该花更多的钱来解决问题就像我们遇到长期增长问题时我们表现的却像遇到总需求问题那样。
These slight aberrations in the rules aren't a problem, as long as you know they exist, and can switch between the two approaches to thinking about elements and attributes.
这种轻微的规则违背不是大问题，只要您知道有这种情况，而且能够转换对元素和属性的两种不同思考方式即可。
Swap files used in this way are never generally a long-term solution to the problem for swap space.
以这种方式使用的交换文件通常决不是针对交换空间问题的长期解决方案。
If you use an encrypted communication channel, this isn't a real problem - as long as the channel encryption is solid, no outside party can monitor a message.
如果使用加密的通信通道，那么就可以解决这个问题—只要通道加密非常可靠，外部无法监视消息。
Quick wins are by their nature short term. But the Middle East faces a long-term employment problem.
立竿见影的措施只有短期效果，而中东面临的就业问题是长期的。
That's not a problem over the long term, as long as you go back later and refactor the code into smaller bites.
从长远来说，这并不是一个问题，但您要记得回过头来将它重构为更小的部分。
And demand for larger cars isn't necessarily a problem, so long as that demand is sustainable in the long run.
只要对大型车的需求是持续不断的，那这种需求本身不一定是个问题。
And demand for larger cars isn't necessarily a problem, so long as that demand is sustainable in the long run.
只要对大型车的需求是持续不断的，那这种需求本身不一定是个问题。
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