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- 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。
- 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。
- I'll explain the difficult problem. 我来解释这道难题。
- Li taught us how to work out the difficult problem. 李先生教我们如何解难题。
- 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。
- The difficult problem present by him entangle the conferee. 他所提出的问题使与会人士感到困惑。
- We're trying to solve the difficult problem by ourselves. 我们正设法自己解决这个难题。
- He clarified the difficult problem by giving a full explanation. 他以一个完满的解说阐明了那个困难的问题。
- The student decided to work out the difficult problem by himself. 这个学生决心独自解决这道难题.
- How could he work out the difficult problem in mathematics? 他竟会算出那道数学难题?
- My younger brother worked out the difficult problem. 我弟弟做出那道难题,这使我大为喜悦。
- He hasn't been able to work out the difficult problem. 他还未能解答出那道难题。
- The monitor worked out the difficult problem the first. 班长第一个解出了这道难题。
- It took him only 3 minutes to solve the difficult problem. 他仅花了三分钟时间就解出了这道难题。
- 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。
- This year the 35th parade actually meets the difficult problem. 但她强调活动组织方会坚持把游行办下去。
- He insisted that we should call in a specialist to solve the difficult problem. 他坚决主张我们去请一位专家来解决这一难题。
- It remains with Mr Smith to solve the difficult problem now confronting us. 我们现在面临的难题有待史密斯先生来解决。
- Only practical and effective measures can solve the difficult problem. 一定要拿出切实可行的办法才能解决这个难题。
