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- In practice, there are three difficult problems in the process of collecting organizational evidence for gangland crimes, owing to subjective or objective reasons. 实务中，由于主客观两方面的原因，“组织性”证据的收集存在三方面的突出问题。
- The nation resource control committee need to settle three difficult problems 国资委实际运作需要解决的三个难点
- The teacher set his pupils a difficult problem. 老师给学生出了一道难题。
- That is an exceedingly difficult problem. 那是个非常困难的问题。
- Solving Three Difficult Problems of General Interest in Representing the Interests of the Chinese People 代表人民的利益必须解决三大热点难点问题
- He tried all manner of ways to solve the difficult problem. 为了解决那道难题，他试了各种方法。
- The greatest scholar cannot solve this difficult problem. 再伟大的学者也没有办法解答这个难题吧。
- Difficult problems used to take hours of work with pencil and paper. 困难的问题以前总是需要用笔和纸工作数小时。
- Our professor is too capable not to solve this difficult problem. 我们教授非常有才干，必定能解决这一难题。
- Mr. Wells tackled the difficult problem, but he couldn't solve it. 威尔斯先生处理过这一难题,但未能解决。
- It's a difficult problem and I should like to go over the ground again. 这个问题是很麻烦，我想再了解一下情况。
- I've just had a brainwave; I know a new approach to the difficult problem! 我刚才灵机一动，突然想出了一个解决这一难题的新办法！
- We deliberated the difficult problems. 我们研讨了这些难题。
- Three difficult problems 三难问题
- We have touched a thorny difficult problem. 我们碰到了一个棘手的难题。
- How to quiet title is still a difficult problem. 如何决定所有权仍然是一个困难问题。
- We will tackle this difficult problem. 我们将着手解决这个难题。
- In itself, it's not a difficult problem to solve. 这本身并不是个难解决的问题。
- It is a most difficult problem to solve. 这是一个非常难以解决的问题。
- I'll explain the difficult problem. 我来解释这道难题。
