即席: [书面语]1.(当座; 当场) impromptu; extemporaneous; extempore; off the cuff; offhand 短语和例子即席发言 make an extemporaneous speech; give an offhand talk; give a talk offhand; 即席讲话 off-the-cuff remarks; 即
Impromptu talk means a talk without preparation 即席发言是指没有事先准备的发言。
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I ' ll just have to give the speech off the top of my head 没有时间写稿，我只好即席发言。
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He had to extemporize because he had forgotten to bring his notes 他因为忘了带讲稿,只好即席发言
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Jit - discussion conference system 即席发言系统
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Multifunctional hall , confernce room is well equipped with furniture , sound and light instruments , convenient speech system offering successful guarantee for your confenrence 多功能厅、会议室设备齐备，完善的音响灯光，手拉即席发言系统等，提供会议成功的保证。
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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。
