大火的起因对警察来说是个难解的问题。
他如何能到这来，对我来说是个难解的问题。
我每星期的钱都到哪去了是一个难解的问题。
不幸的是，我们在这样做时碰到了一些纠缠难解的问题。
难解的问题我问我的同事是否喜欢他女儿送他的衬衣。
I asked a colleague of mine how he liked the shirt his daughter had given him as a gift.
以色列和巴勒斯坦之间的斗争是个难解的问题，长时间都难以解决。
The Israelis and Palestinians are in a conflict which is a Gordian knot that may not be resolved for a long time.
这本身并不是个难解决的问题。
·扑灭森林大火被认为是世界上最难解决的问题之一。
Putting out forest fire is regarded as one of the most difficult problems in the world.
因此，当您使用真实的代码时，就可能会碰到可移植性问题 ——不过大部分问题都是由于意外造成的困难，而不是因为问题本身很难解决。
So, when you have real code, you might run into portability problems -- but most of them are accidental difficulties, not real challenges inherent in the problem.
而一旦确诊后，是否用药物治疗抑郁还是个难解决的问题。
But once diagnosed, the question of whether to treat antenatal depression with drugs is a difficult one.
这是一个很难解决的问题。
这些工具都很强大，但是有一些共同的问题它们都很难解决。
The tools are sophisticated, but there are a common set of problems which they handle poorly.
丢失或者不稳定的包信息可能是最难解决的问题。
Missing or inconsistent package information is probably the most difficult problem to solve.
有时可能会出现较难解决的问题，这可能会导致资源花费更多的时间解决该问题。
Sometimes a more difficult question arises, which causes the resource to spend a far greater amount of time solving the problem.
二氧化碳的问题很难解决，然而，因为它主要来源于化石燃料的燃烧，这在现代生活和商业中是必不可少的。
The carbon dioxide problem is hard to fix, however, because it comes mainly from the burning of fossil fuels, which is so essential to modern life and commerce.
这是一个很难解答的问题，因为它有那么多的答案。
It's a difficult question to tackle because there's so very much to it.
许多开发人员发现约束违反是一种很难解决的类装入问题。
Many developers find constraint violations to be a difficult type of class loading problem to resolve.
针对系统的性能问题常常是非常难解决的。
A performance problem with a system is often very hard to solve.
较难解决的一个问题是缺少一个可以执行的大框架。
The tough problem is that technical solutions need a framework in which they can be executed.
在将网络层作为整体处理时，很难解决诸如某些客户机带宽有限这样的问题。
It's hard to solve problems such as limited bandwidth of some clients while working with the network layer as a whole.
此外，本文还提供了常见连接问题的疑难解答技巧和跟踪选项。
In addition, it provided troubleshooting techniques for common connection problems and tracing options.
推理统计学是一套已定形了的方法体系，它解决的是光凭人脑极难解决的另一类问题。
Inferential statistics is a formalized body of methods for solving another class of problems that present great difficulties for the unaided human mind.
但是，零售商还有一个更难解决的问题：如何确保补充的产品及时交付到仓库？
A much more difficult problem for the retailer is to assure that replenishments for the back room are delivered in time.
长期以来，过于雄心勃勃的全球气候谈判的重点是最难解决的全球变暖的问题。
For too long, overly ambitious global climate talks have focused on the aspects of global warming that are hardest to solve.
奥巴马接手的在中东的实际问题证明是非常顽固的，很难解决。
The practical problems Mr Obama inherited in the Middle East have proved obstinately hard to resolve.
所幸的是，这个问题不难解决(见清单6)。
Fortunately, it's not a difficult problem (see Listing 6) to fix.
所幸的是，这个问题不难解决(见清单6)。
Fortunately, it's not a difficult problem (see Listing 6) to fix.
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