In itself, it's not a difficult problem to solve.
这本身并不是个难解决的问题。
How to improve the quality of products was a difficult problem to him.
如何提高产品质量对他来说可是个难题。
She is working at a difficult problem in mathematics.
她在做一道数学难题。
It's really a difficult problem.
这真是个难题。
He's working on a difficult problem.
他正在研究一个困难问题。
We have a difficult problem to solve.
我们面临一个难以解决的问题。
Never have I come across such a difficult problem.
我还从没有遇到过这样困难的问题。
Representation of tree is a difficult problem in 3dgis.
在3dgis中，树的表达是一个难点问题。
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)。
It's such a difficult problem that I have to dom uch to work it out.
这是一道如此难解的题，以致我得费很大力气才能把它做出来。
If a problem can be solved by money, it is not really a difficult problem.
如果一个问题可以用金钱得到解决，那么它就不真是一个困难的问题。
A woman like me, always in a difficult problem in the form of feelings.
像我这样的女人，总是以一个难题的形式出现在感情里。
It remains a difficult problem to develop a concrete value chain analysis.
如何具体展开价值链分析，仍是一个难题。
If a problem can be solved by money alone, it is not really a difficult problem.
如果仅仅用金钱就可解决一个问题，那么这不是一个真正困难的问题。
Here's how to view this as an antipattern: I've started with a difficult problem.
下面是在反模式中考虑这个问题的方式：我从一个很难的问题开始。
I know this is a difficult problem, but do you prepare to face the challenge?
我知道这是个难题，但是你准备好迎接这个挑战了吗？
Vibration of motorcycle is a difficult problem motorcycle producers are faced with.
摩托车振动是当前摩托车企业面临的技术难题。
Providing dynamic internationalization of information for display is a difficult problem.
为显示提供信息的动态国际化是一个难题。
Parallel program is an active research field presently, and it is also a difficult problem.
并行程序目前是一个活跃的研究领域，也是一个困难问题。
Not only is this problem very important, but it is a difficult problem to be solved at once.
这个问题不仅十分重要，而且还是一个马上要解决的困难问题。
If the prosthesis is loose and there is radiological evidence of osteolysis is a difficult problem.
如果假体松动，有放射学表现的骨溶解，这将是一个困难的问题。
A difficult problem could be good for a designer, but a fickle client or unreliable materials would not be.
一个困难的问题对一个设计者来说是好的，但是一个多变的客户和不可靠的材料不是。
Limited from detecting means, the threat estimation on air targets is a difficult problem to submarine underwater.
由于受探测手段的限制，水下潜艇对空中目标的威胁评估一直是研究难题。
This shows how, by very simple means, in a family constellation we can reach a solution for such a difficult problem.
这个案例以非常简单的方式告诉我们，在一个家庭系统中我们可以为这样的难题找到一个解决方案。
The conversion of mass crime is a difficult problem in judicatory practice, as it does not bring to bear accurate theory to guide.
聚众犯罪的转化犯在司法实践中是一个较为疑难的问题，主要原因是没有运用正确的理论加以指导。
Obviously this is a difficult problem, but the incentive to solve it is very big. The main approaches fall into the following categories.
显然，这是一个很困难的问题，但是解决它的激励也很大。
Obviously this is a difficult problem, but the incentive to solve it is very big. The main approaches fall into the following categories.
显然，这是一个很困难的问题，但是解决它的激励也很大。
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