1. as nuclear weapons proliferate, preventing war becomes imperative; requests that grew more and more imperative. 因为核武器的扩散，防止战争已经变得非常必要了；越来越迫切的要求。
2. the The president is half carry form says health care reform is no longer just no more inparitivea moral imperative, it is an ecmonic inparitiveeconomic imperative. 总统表示医疗改革现在并不仅仅是普通的需求，而是在当前经济下势在必行的事情。
3. This paper discusses the possibility of semantic combinations between every two types of mood patterns: declarative, imperative, interrogative and exclamative. 本文考察了陈述、祈使、疑问、感叹四种语气类型的十六种组合可以有哪些语义关系，不能有哪些语义关系。
4. In Ersu language, perfective prefixes and imperative prefixes have the same forms of some directive prefixes in verbs, in aspect, mood and space categories separately. 尔苏语动词的趋向前缀、已行体前缀和命令式前缀或同形，分属空间范畴、时体范畴和语气范畴。
5. When the mood is bad, with what can the method make the mood ameliorates? 心情不好的时候，用什么方法可以使心情变好？
网络释义
imperative mood 祈使语气;
命令语气;
命令式;
祈使式;
Mood-Subjunctive Mood 第十章 语气??虚拟语气;
第十章 语气——虚拟语气;
The Imperative and Exclamatory Sentences 第十讲 祈使句和感叹句;
第十讲祈使句和感叹句;
