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crucial (B2)

カタカナ: クルーシャル

IPA: /ˈkruːʃəl/

Extremely important or significant, especially in determining the success or failure of something.

意味: 物事の成否を分けるほど、極めて重要であること。

Getting enough sleep is crucial for maintaining good health. — 十分な睡眠をとることは、健康を維持するために極めて重要です。
The final exam is a crucial part of your overall grade in the course. — 期末試験は、コースの総合評価において決定的な部分を占めます。
It is crucial that we act quickly to prevent further damage. — 被害の拡大を防ぐために、私たちが迅速に行動することが不可欠です。

Japanese translations of Crucial:

crucial for (prepositional phrase): essential for a purpose or outcome — "Communication is crucial for a healthy relationship."
crucial to (prepositional phrase): essential to something's existence or success — "His support was crucial to her recovery."
it is crucial that (collocation): emphasizing the necessity of an action — "It is crucial that all safety procedures are followed."