词根:crit

crit评论 + ical构成形容词 -> 评论的 -> critical批评的

A few twentieths of a gram can be critical.

二十分之几克可能是关键的。

She viewed the findings with a critical eye.

她以批评的眼光看待这些研究结果。

Tom's parents were highly critical of the school.

汤姆的父母对学校提出了强烈的批评。

The crisis is entering a crucial， critical phase.

危机正进入一个至关重要的决定性阶段。