The problem is difficult to understand.
这个问题难于理解。
Gathering statistics on the scale of the problem is difficult.
按这个问题的规模来收集统计数据是有困难的。
The problem is difficult to solve in field of bellows designing.
该问题是波纹管设计的难点之一。
Why is the obesity problem in Britain so difficult to solve?
为什么英国的肥胖问题如此难以解决？
But the problem is a difficult one to solve.
但这是一个难以解决的问题。
It is very difficult to determine the cause of a problem that only occurs sometimes.
只有偶尔会发生的问题是很难确定问题的起因的。
The most difficult problem faced by the Google Books team is garbage data.
Google图书面临的最困难的问题是垃圾数据。
But for a driver, if you have an accident and you have this problem, the recovery is more difficult.
但对于一个车手，如果你经历过一次事故，并且有这些问题，恢复起来就要困难些。
Identifying the problem, or problems, is the first and most difficult step.
辨出问题所在，是第一步同样是最困难的一步。
One problem was that it is extremely difficult to recreate the effect in the laboratory.
有个问题就是想在实验室内再现地磁效果异常困难。
Missing or inconsistent package information is probably the most difficult problem to solve.
丢失或者不稳定的包信息可能是最难解决的问题。
The only problem is that it's often difficult to break into writing at first.
唯一的问题就是刚开始写作的时候有点儿难。
The next (less difficult) problem is how to store the processed data.
第二个问题比较容易解决，就是如何保存处理过的数据。
Theory is not the problem; the application of the ideas appropriately is what's difficult.
理论并不是问题，恰当的应用想法是难点所在。
It gave me the courage and confidence, difficult problem is I want to solve them.
这给我的是勇敢，是信心，困难的问题我会想办法解决它们。
The problem is that it's really difficult to quit.
但问题是很难戒掉。
In the nonprofit sector area which is the one that has a difficult name problem.
在无利润区，我们很难给它命名。
Also, the longer the problem goes ignored, the more difficult it is to treat.
而且，耽搁得越久，越难治愈。
However, in the opinion of the time management expert, this also is not particularly difficult problem.
不过，在时间管理专家看来，这也并不是特别难解决的问题。
This problem is extremely difficult to solve using the conventional approach to programming.
这个问题用传统方法来解决是非常难的。
It is quite difficult to explain the problem to the beginners.
向初学者表明明白这个题目是比力困难的。
The problem is so difficult that few people can solve it.
这个问题太难了，几乎没人能做出来。
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？
It is difficult for us to work out the problem.
对我们来说，解出这道题是很难的。
The problem is that it is pretty difficult to ensure and test.
问题是，对此的保证和测试是非常困难的。
This is too difficult a problem for the beginners to solve.
这个问题对于初学者来说太难解决了。
This is too difficult a problem for the beginners to solve.
这个问题对于初学者来说太难解决了。
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