难题用英语怎么说？

难题

• [nán tí]
  difficult problem，a hard nut to crack，aporia，poser，conundrum

例句

• It's good for students to puzzle things out for themselves. 让学生们自己思索解决难题很有好处。
• He is meeting the tickler successfully. 他在顺利地处理着这难题。
• the problem of breaking down deep-seated cultural taboos 破除根深蒂固的文化禁忌这个难题
• I was glad to be let out of that nasty affair, and have someone more experienced handle the trouble. 我真高兴能从那件棘手的事情中解脱出来, 让更有经验的人去对付那个难题。
• a sphinx riddle 怪谜; <喻>难题
• You've posed an awkward question. 你已经提出了一个难题。
• The lawyer's advice led to the resolution of this difficult problem. 律师的劝告帮助解决了这个难题。
• The class remained mute when the teacher asked a difficult question. 老师问到难题时, 全班都沉默无言。
• This is a tough problem. 这是一个难题。
• The student tripped on that difficult question. 学生答错了那道难题。

同义词

• 困难，

英汉词典释义

• [nán tí]
  difficult problem; a hard nut to crack; aporia; poser; hot potato; facer; headache; stinker; teaser; ticklish problem
  set difficult questions
  出难题
  handle a hot potato
  处理难题
  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。
  The problem looks simple enough, but when you come to try and solve it you'll find it's a real teaser.
  这道题看起来很简单， 但当你要解它时你就会发现它确实是一道难题。

汉语词典释义

• 词语 难题（難題）
  拼音 nán tí
  拼写 nanti
  同义词 困难;
  例句 我虽然高高地坐在台上，实际却有点像中学生接受考试，幸而读者们十分友好，没有出难题，一个半小时就顺利地过去了。