1
a conundrum
作主语或宾语，表示一个具体的难题。
The budget deficit is a real conundrum for the government.
预算赤字对政府来说是一个真正的难题。
难题
conundra — plural of conundrum
先理解核心含义，再看它在真实句子里的用法。
难题
conundrum
The budget deficit is a real conundrum for the government.
预算赤字对政府来说是一个真正的难题。
难题或谜语,尤其是答案中使用双关语的
A difficult question or riddle, especially one using a play on words in the answer.
一个难题
a difficult problem
必须做出的困难选择或决定
A difficult choice or decision that must be made.
The team faced a conundrum: how to cut costs without losing quality.
团队面临一个难题：如何在不降低质量的情况下削减成本。
Choosing between the two job offers was a real conundrum for Maria.
在两个工作机会之间做选择对玛丽亚来说确实是个难题。
Scientists are still trying to solve the conundrum of dark matter.
科学家们仍在努力解开暗物质这个难题。
作主语或宾语，表示一个具体的难题。
The budget deficit is a real conundrum for the government.
预算赤字对政府来说是一个真正的难题。
后接名词或动名词，说明难题的具体内容。
We are faced with the conundrum of how to reduce costs without losing quality.
我们面临如何在降低成本的同时不损失质量的难题。
常与pose, present等动词搭配，表示制造或提出难题。
This new technology poses a conundrum for regulators.
这项新技术给监管机构带来了一个难题。
Not this
This math problem is very conundrum.
Use this
This math problem is a conundrum.
Conundrum是名词，不能用作形容词。应改为名词形式或使用形容词如puzzling。
Not this
I'm in a conundrum about which job to take.
Use this
I'm in a dilemma about which job to take.
Conundrum指谜题或难题，而dilemma指两难选择。表达两难选择时应用dilemma。
Focus on the distinctions below. Other candidates are kept compact until a reliable usage note is available.
带来难题
The new evidence poses a conundrum for the research team.
新证据给研究团队带来了一个难题。
面临难题
We face a conundrum: we need more staff but cannot afford to hire anyone.
我们面临一个难题：我们需要更多员工，却雇不起任何人。
解决难题
Scientists are still trying to solve the conundrum of how the universe began.
科学家仍在试图解决宇宙起源这一难题。
道德难题
The doctor faced a moral conundrum: save the mother or the unborn child.
医生面临一个道德难题：救母亲还是救胎儿。
……的难题
The conundrum of how to cut emissions without hurting the economy remains unresolved.
如何在减排的同时不损害经济，这一难题仍未解决。
先有鸡还是先有蛋的难题；因果难定的困境
Building a new social network is a chicken-and-egg conundrum: nobody wants to join an empty platform, but the platform needs users to attract more users.
建立一个新社交网络是一个先有鸡还是先有蛋的难题：没人想加入一个空平台，但平台需要用户才能吸引更多用户。
谜中之谜；极其费解的难题
How the company survived the crisis is a conundrum wrapped in an enigma.
这家公司究竟如何渡过危机，是一个谜中之谜。
Use conundra naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
记住：conundrum 像一颗难敲开的坚果，答案常藏双关——既是难题，也是谜语。
语域：mixed 常见场景：学术讨论、书面报道、解谜语境、日常对话中的幽默用法 conundrum 多用于较正式或书面语境，指难以解决的复杂问题或谜语；在日常对话中偶尔出现，常带玩笑或夸张意味，具体语域需根据上下文判断。
conundrum 读作 /kəˈnʌndrəm/，重音在第二个音节，没有完全同韵的词。hundred 的音节 /ˈhʌndr-/ 与它最接近，但词尾是 /əd/ 而非 /əm/；thunder、blunder 以 /ˈʌndər/ 收尾，也只是近音。drum 是拼写形近词，词末同为 -drum，但读作重读的 /drʌm/，在 conundrum 中相同字母组合读不重读的 /drəm/。tantrum、spectrum 只共享不重读的 /trəm/ 结尾，并不押韵。
Dictionary facts from ECDICT, WIKTIONARY.