adj. 1.临时作成的，脱口而出的，即席的。 2.不用讲稿的，善于即席讲话的。 3.临时的，权宜之计的。 短语和例子 an extemporaneous speech 即席演说。 an extemporaneous shelter 临时遮蔽所。 adv. -ly
with little or no preparation or forethought; "his ad-lib comments showed poor judgment"; "an extemporaneous piano recital"; "an extemporary lecture"; "an extempore skit"; "an impromptu speech"; "offhand excuses"; "trying to sound offhanded and reassuring"; "an off-the-cuff toast"; "a few unrehearsed comments" 同义词：ad-lib, extemporary, extempore, impromptu, offhand, offhanded, off-the-cuff, unrehearsed,
例句与用法
1.
Nixon carried away with it all, delivered his extemporaneous toast . 尼克松对一切都很满意，颇有些情不自禁地发表了他的即席祝酒词。
2.
A brief analysis of piano extemporaneous accompaniment 音乐高师生必须提高钢琴即兴伴奏水平
3.
The analysis of the teaching of extemporaneous piano accompaniment in teachers colleges and universities 高师钢琴即兴伴奏课教学浅析
4.
So , my remarks her e today , being extemporaneous , i am sure you will make allowances for me 因此，今天本人在此发表的即席演说，我确信各位一定会包容。
5.
Knew working content and cause only , ability have a definite object in view begins the work , do not make extemporaneous fight 只有了解了工作内容和目标，才能有的放矢开展工作，不打无预备之战。
6.
I am not a very good extemporaneous speaker ; in fact , i am no speaker at all ； but i am not so very much discouraged , be cause a few days ago i was at hyde park , and went to the president ' s library 我并不擅于即席演说，事实上根本称不上是演说家，但我不会因此怯场，因为前几天我在海德公园参观过总统图书馆，在那里看见的一些东西鼓励了我，让我感觉各位或许不会对我的即席演说要求太多。
7.
In order to arouse the more student ' s study interests , i also mutually compete with the student , supervise , to look that mutually whose language is inaccurate , and corrects one ' s pronunciation for it ; also the non - periodical hold extemporaneous speech or the lecture , the teachers and students fellowship , launches the competition 为唤起更多学生的学习兴趣，我还和学生互相比赛、互相督促，看谁的语言不准确，并为其正音；还不定期举行即席发言或演讲，师生共同参与，展开竞争。
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