crux

noun
🔊/krʌks/
🔊/krʌks/
[singular]
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  1. the crux (of something) the most important or difficult part of a problem or an issue(难题或问题的)关键,最难点,症结 synonym nub
    • Now we come to the crux of the matter.现在我们来谈问题的症结。🔊🔊
    Oxford Collocations Dictionaryadjective
    • real
    verb + crux
    • be
    crux + verb
    • lie
    phrases
    • the crux of the matter
    • the crux of the problem
    See full entry
    Word Originmid 17th cent. (denoting a representation of a cross, chiefly in crux ansata ‘ankh’, literally ‘cross with a handle’): from Latin, literally ‘cross’.