imperative

imperative
adjective

of vital importance; crucial
至关重要的，至关紧要的
immediate action was imperative.
立即行动至关重要。
[with clause]it is imperative that standards are maintained.
维持标准是至关重要的。
giving an authoritative command; peremptory
命令的，强制的，专横的
the bell pealed again, a final imperative call.
铃又响了，这是最后的命令。
■(Grammar)denoting the mood of a verb that expresses a command or exhortation, as in come here!
(语法)祈使语气的（表示命令，劝告，如come here!）

noun

an essential or urgent thing
基本；当务之急
free movement of labour was an economic imperative.
劳动力的自由流动是经济的基本。
■a factor or influence making something necessary
必要性
the change came about through a financial imperative.
这改变是由于财政必要性而发生的。
■a thing felt as an obligation
义务，职责
the moral imperative of aiding Third World development.
帮助第三世界发展的道德义务。
(Grammar)a verb or phrase in the imperative mood
(语法)祈使语气动词，祈使语气短语
■(the imperative)the imperative mood
祈使语气

派生
imperatival
[ɪmˌpɛrəˈtʌɪv(ə)l]
adjective
imperatively
adverb
imperativeness
noun
语源

late Middle English (as a grammatical term): from late Latin imperativus (literally 'specially ordered', translating Greek prostatikē enklisis 'imperative mood'), from imperare 'to command', from in- 'towards' + parare 'make ready'

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