critical

英 /ˈkrɪtɪkəl/ 　美 /ˈkrɪtɪkəl/

adj. 至关重要的；关键的extremely important to the success or outcome of something
adj. 批评的；批判性的expressing disapproval or carefully judging strengths and weaknesses
adj. 危急的；严重的so serious that someone may die or something may fail

Your support was critical when I started my business.

我创业时，你的支持至关重要。

Access to clean water is critical to improving public health in rapidly growing urban communities.

获得清洁用水对改善快速发展城市社区的公共卫生至关重要。

搭配

critical to success 对成功至关重要critical thinking 批判性思维critical of someone 批评某人in critical condition 情况危急

critical of表示批评；critical to表示对……至关重要。

critically (adv.)、critic (n.)、criticism (n.)、criticise (v.)