n.难题，谜语，令人迷惑的难题，复杂难解的问题

原形：conundrum复数：conundrums

The question of whether to prioritize economic growth or environmental protection poses a significant conundrum for policymakers.
对于政策制定者来说，优先考虑经济增长还是环境保护是一个重大的难题。
Solving the conundrum of how to sustainably feed a growing global population is crucial for the future of humanity.
解决如何可持续地养活不断增长的世界人口这一难题，对人类的未来至关重要。
The detective was faced with a perplexing conundrum: the suspect had an alibi for every crime scene.
侦探面临一个令人困惑的难题：嫌疑人在每个犯罪现场都有不在场证明。
The conundrum of balancing work and personal life is a challenge that many professionals struggle with daily.
平衡工作和个人生活的问题是许多专业人士每天都在努力应对的挑战。
In the novel, the protagonist finds herself in a moral conundrum when she discovers her best friend's secret.
在小说中，主人公发现自己处于道德困境，因为她发现了最好朋友的秘密。
The scientist was trying to unravel the conundrum of dark matter, which makes up a significant portion of the universe but remains largely mysterious.
这位科学家正试图解开暗物质之谜，它构成了宇宙的很大一部分，但仍然很大程度上是个谜。
The company's marketing team grappled with the conundrum of how to reach younger audiences without alienating their loyal, older clientele.
公司的营销团队努力解决如何在不疏远忠实的老年客户群的同时吸引年轻受众的难题。
The chef's conundrum was creating a menu that catered to both vegan and carnivorous customers without compromising taste or creativity.
这位厨师面临的难题是如何在不影响味道或创意的前提下，制作出既适合素食者也适合肉食者的菜单。
The philosopher's latest book explores the eternal conundrum of free will versus determinism.
这位哲学家的最新著作探讨了自由意志与决定论这一永恒的难题。
Deciding whether to invest in stocks or bonds during times of economic uncertainty presents investors with a complex conundrum.
在经济不确定时期，决定投资股票还是债券给投资者带来了一个复杂的难题。