The imperative is the same as the base form of a verb.
祈使句使用动词原形。
Researches of welded turnout on bridge are imperative.
桥上无缝道岔的研究迫在眉睫。
The Category and Usage of English Imperative Sentences
英语祈使句的类型和用法
For them selfcontrol is final, imperative, and absolute.
对他们来说，克己是诫命和必要，也是决定性的。
It is absolutely imperative that we finish by next week.
我们的当务之急是必须于下周完成。
It is imperative that you begin to remember who you are.
它是诫命，你们开始回忆你们是谁。
To halt an intended action. Often used in the imperative.
停止本想做的事。常用于命令式
The application of concrete mixed materials is imperative
谈混凝土掺合料应用的必要性
Office automation in higher institutions being imperative
高校办公自动化势在必行
To cease being an annoyance. Often used in the imperative.
停止扰乱, 常用于祈使语气
We have a clear imperative to reform capital requirements.
我们显然迫切需要改革资本金要求。
The imperative category is the common grammatical category.
祈使是俄汉语共同使用的语法范畴。
It was an important suit, and great accuracy was imperative.
这是一宗很重要的诉讼案，有必要搞得很准确度。
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。
Used in the imperative for the purpose of calling attention.
用在祈使句中以引起人注意。
Only at this time is such suppression imperative and possible.
只有这时, 才有这种必要, 也才有这种可能。
Adapt or perish now as ever，is natures inexorable imperative.
适者生存，不适者消亡，是自然不可改变的法则。
It is utterly imperative for you to carry this message to them.
你必须把这囗信带给他们。
It is imperative to effectively beef up international cooperation.
三, 切实加强国际合作。
Adapt or perish， now as ever， is natures inexorable imperative.
适者生存，不适者灭亡，这时自然界一如既往，永不改变的规律。
To look out. Often used in the imperative. esp imperative in prayers
尤用於祷文中的祈使句
Adapt or perish ， now as ever ， is Natures inexorable imperative.
适应或是消亡，一向如此，是自然界无法改变的事实。
It is imperative to accelerate the research on zoonosis in the country
加强人兽共患病研究势在必行
It is imperative that they be guaranteed safety and unhindered access.
必须保障它们的安全和通行无阻。
And under imperative necessity, he abolished the writ of habeas corpus.
在紧急形势下，他废除了人身保护令。
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