adj. 1.命令的，强制的，专横的。 2.不可避免的，绝对必要的，迫切的，紧急的。 3.【语言学】祈使的。 短语和例子 an imperative manner 专横的态度。 imperative mood 祈使语气。 imperative sentence 祈使句。 It is imperative that we should [it is imperative for us to] act at once. 我们必须马上行动。 an imperative duty 紧急任务。 imperative necessity 迫切需要。 n. 1.命令；规则；必须做的事。 2.【语言学】祈使语气，祈使语气动词。 adv. -ly ,-ness n.
some duty that is essential and urgent
a mood that expresses an intention to influence the listener''s behavior 同义词：imperative mood, jussive mood, imperative form,
requiring attention or action; "as nuclear weapons proliferate, preventing war becomes imperative"; "requests that grew more and more imperative"
relating to verbs in the imperative mood
例句与用法
1.
It is imperative that we should act at once . 我们必须马上行动。
2.
Survival is our first imperative . 我们当务之急是设法生存下来。
3.
Change was unsettling, but also imperative . 变动使人心烦，可是又少它不得。
4.
It is imperative for us to act at once . 我们必须马上行动。
5.
Nixon, however, had other imperatives . 但尼克松另有需要。
6.
The discovery, i apprehend, is not imperative . 我认为，这个发现不是必不可免的。
7.
The language of desire, and aversion, is imperative . 欲望与嫌恶所用的语言是命令式的。
8.
It is imperative for us to recover the initiative in diplomacy . 恢复外交主权已属刻不容缓。
9.
It is imperative that the issues and questions be addressed . 指出这些问题和争端是绝对必要的。
10.
It was imperative in his mind that he should be sure he had the power to move her . 他内心里坚信，他有能力感动她，这是理所当然的。
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