conundrum

US [kəˈnʌndrəm]
UK [kə'nʌndrəm]
  • n.令人迷惑的难题;复杂难解的问题;谜语
  • Web谜题;复杂难题;谜团
Plural Form:conundrums  
conundrum
n.
1.
令人迷惑的难题;复杂难解的问题a confusing problem or question that is very difficult to solve
2.
谜语a question, usually involving a trick with words, that you ask for fun

Sample Sentence

Definition:
Category:AllAll,OralOral,WrittenWritten,TitleTitle,TechnicalTechnical
Source:AllAll,DictionaryDictionary,WebWeb
Difficulty:AllAll,EasyEasy,MiddleMiddle,HardHard