即席的英文：
extempore
impromptu
off the cuff
off the top of one's head
on-the-spot
- A speech made impromptu.
即席演说。 - He made an impromptu speech.
他做了即席演说。 - The pianist improvised an accompaniment to the song
那位钢琴家为那首歌即席伴奏。 - The speaker can extemporize on any of a number of subjects.
该演讲人对若干题目中的任一个都能即席发言。 - 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. - I spoke for an hour easily, and from that time always extemporized.
我轻而易举地讲了一个钟头，从那以后我就总是即席讲话了。 - bravely demonstrating his ability to extemporize intelligently(William Safire)
勇敢地展示他的智慧的即席表演才能(威廉·萨菲尔) - Fake an accompaniment
即席伴奏 - An accomplished extemporaneous speaker.
一位高明的即席演讲者 - I am ready to give the speech off the top of my head.
我准备好即席发言了。
adj. 即席的，当场的
adv. 即席，当场
n. 即席之作
- The speaker can extemporize on any of a number of subjects.
该演讲人对若干题目中的任一个都能即席发言。 - bravely demonstrating his ability to extemporize intelligently(bWilliam Safire)
勇敢地展示他的智慧的即席表演才能(b威廉·萨菲尔) - 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。
n. 即席演出，即兴曲
adj. 即席的
- There are eight such impromptus in total.
总共有8个这样的即兴曲。 - A piece of impromptu spiced up the concert.
一段即兴曲使音乐会更活跃了。 - The children put on an impromptu concert for the visitors.
孩子们为来访者即兴献上了一场音乐会。
adv. 掉，下；离开；隔开；切断；停止；；休息；光，完，尽；全部地
prep. 从...离开；从...向下；在...的外面；偏离...；从...分岔；不再从事...；低于...
adj. 关着的；停止流通的；延期的；取消的；不工作的；处于...境况的；萧条的
v.（用于祈使句）走开，滚开；站开
n. 关掉
- Is the water on or off?
自来水龙头开着还是关着？ - The gilt is off.
幻想破灭了。 - to nip off; to cut off; to break
掐断