1.
To improvise and deliver extemporaneously.
即兴演讲，即兴发言
2.
I won't prepare a speech: I'll talk off the cuff.
我不准备发言稿，我将即兴发言。
3.
When the invited speaker did not arrive, the chairman rose to the occasion and delivered an excellent unprepared speech.
当被邀请的演讲者没来时，主席随机应变，作了一场精彩的即兴发言。
4.
China English-a Would-be ProsperousEnglish Language Variety;
中国英语——即将兴盛的英语语言变体(英文)
5.
To invent, compose, or recite without preparation.
即兴创作无准备地发明、创作或者背诵
6.
To invent, compose, recite, or execute something offhand.
即席创作；即席表演即兴地发明、创作、背诵或者制成某事物
7.
This music is all created spontaneously, and the emotion I feel when I play this way is deeper than words.
这些音乐都是即兴创作，而在我即兴演奏这些音乐所感受的情绪则非言语能够形容.
8.
2. This refers to "Preface I"
（2）即《序言一》。
9.
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.
10.
He has to extemporize because he has forgotten to bring his note
他因为忘了带讲稿,只好即席发言
11.
He have to extemporize because he have forget to bring his note.
他因为忘了带讲稿，只好即席发言。
12.
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。
13.
He has to extemporize because He has forget to bring his note
他因为忘了带讲稿, 只好即席发言
14.
A Brief Talk on Development of New Developing Language and Decline of Traditional Language;
浅谈新兴语言的发展与传统语言的失落
15.
A brief report, especially an official statement on a matter of public interest issued for immediate publication or broadcast.
公告，公报一个简短的报告，尤指政府就公众感兴趣的事件使其立即公开或被宣传而发布的官方宣言
16.
Creating a Relaxing Language Environment to Arouse Students Interest in Study;
营造宽松语言环境 激发学生学习兴趣
17.
Uttered, performed, or carried out spontaneously.
即兴的，临时插入的自发说出的，表演的或完成的
18.
I knew he was improvising, an old habit of his.
我知道他是在即兴发挥，这是他的老习惯。