imperative
翻译
必要的, 紧急的, 命令式的
例句
It is imperative to finish this project.
完成这个项目是当务之急。
He spoke in an imperative tone of voice.
他用命令式的口吻说话。
语法模式
It is imperative ((to-inf)) 做某事是必要的 It is imperative to act quickly.
It is imperative ((that...)) ...是必要的 It is imperative that we leave now.
近义词
Synonyms: crucial, vital, essential; Antonyms: optional, unimportant
词源
源自拉丁语 `imperare`（命令），由 `im-`（进入）和 `parare`（命令，准备）组成。
记忆技巧
想象一位“emperor”（皇帝）下达一个“imperative”（必须执行的）命令，你必须服从。