crux

US /ˈkrʌks/
UK /ˈkrʌks/
"crux" picture
1.

核心, 要点, 難点

the most important or essential point of an issue or problem

:
•
The crux of the matter is that we don't have enough funding.
問題の核心は、資金が足りないということです。
•
He finally got to the crux of his argument.
彼はついに議論の核心にたどり着いた。
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