n.症结，(难题或问题的)关键，最难点

The crux of the problem lies in understanding the complex algorithms involved.
关键在于理解所涉及的复杂算法。
His argument was so compelling that it hit the crux of the debate.
他的论点如此有力，直击辩论的核心。
She identified the crux of the negotiation – a fair price for both parties.
她找到了谈判的关键——对双方都公平的价格。
After extensive research, the scientist found the crux of the mystery.
经过深入研究，科学家揭开了谜团的核心。
The crux of his theory is that humans can coexist with nature without damaging it.
他理论的核心是人与自然可以和谐共存，而不破坏它。
His diagnosis pinpointed the crux of her health issue – a rare autoimmune disorder.
他的诊断准确地指出了她的健康问题的关键——一种罕见的自身免疫性疾病。
The crux of their disagreement was a fundamental difference in values.
他们分歧的关键在于价值观的根本差异。
The crux of the matter is that we must prioritize conservation efforts.
问题的关键是我们必须优先考虑保护工作。
In the legal dispute, the crux of the case came down to a single piece of evidence.
在法律纠纷中，案件的关键在于一个单一的证据。
The crux of her teaching philosophy is to inspire students to think critically.
她的教学理念的核心是激发学生批判性思考。