难题指试卷上不容易解答的题目;难以解决的问题，难以处理的事情，令人伤脑筋的题目或事情。那么你知道难题用英语怎么说吗?下面来学习一下吧。
难题英语说法1：
conundrum
难题英语说法2：
puzzle
难题英语说法3：
difficult problem
难题的相关短语：
电车难题 The Trolley Problem ; TheTroleyProblem ; trolley dilemma
道德难题 moral dilemma ; Ethical Dilemmas
难题箱 problem box ; puzzle box
难题核心 Puzzle Core
中国难题 The China Conundrum
忘却难题 Forget problems
微妙难题 delicate problem
解答难题 To answer difficult questions ; Answers to problems ; Answer challenge ; Explanation difficult problem
机械难题 Mechanical Puzzles
难题的英语例句：
1. Integrating the pound with other European currencies could cause difficulties.
把英镑与欧洲其他货币合并会引发许多难题。
2. Even clever people are not terribly clever when put on the spot.
即便是聪明人在面对难题时也未必就能表现得特别聪明。
3. They will be there to help if you get stuck.
如果你遇到难题的话他们会帮助你。
4. She was cheery and talked to them about their problems.
她兴致很高，和他们谈了他们的难题。
5. His critics maintain that he's responsible for many of Algeria's ills.
他的批评者们坚持认为他应该为阿尔及利亚所面临的许多难题负责任。
6. The film touches on these difficult questions, but only superficially.
这部电影触及了这些难题，但只是蜻蜓点水式的。
7. The Opposition reckons the Health Secretary has ducked all the difficult decisions.
反对党认为卫生大臣逃避了所有决策难题。
8. Drug abuse has long been a major problem for the authorities there.
长久以来，吸毒一直是那里的当局面临的一个大难题。
9. The first difficulty is that, old-fashioned or not, it is very good.
首要的难题是，过时也好，不过时也罢，它很不错。
10. His team solved the engineering problem by stealing an idea from nature.
他的团队从自然界获得灵感，解决了这个工程难题。
11. The economy has become a troublesome issue for the Conservative Party.
经济状况已成为保守党的一大难题。
12. Scientists have tended to skate over the difficulties of explaining dreams.
科学家们往往回避释梦的难题。
13. We win half the battle when we make up our minds to take the world as we find it, including the thorns.
当我们下定决心面对世界上所有事物，包括荆棘难题，就已经打赢了半场战役。
14. This is a real headache for us.
这对我们来说真是个难题。
15. The conference spent days discussing the vexed question of border controls.
会议花了几天的时间讨论边境关卡这个难题。