ad-lib

verb

1. 即席讲话；即兴表演
   to say sth in a speech or a performance that you have not prepared or practised
   1. She abandoned her script and began ad-libbing.
      她抛开脚本即兴表演起来。
   2. I lost my notes and had to ad-lib the whole speech.
      我把讲稿丢了，只好临时说了一通。

1. VERB 即兴演出，临时插入（脚本或讲稿中没有的台词）
   If you ad-lib something in a play or a speech, you say something which has not been planned or written beforehand.
   1. He began comically ad-libbing a script...
      他即兴调侃起了一段剧本。
   2. He's good at ad-libbing his way out of trouble...
      他善于为自己妙语解围。
   3. He is rather disjointed when he ad-libs.
      他即兴表演时，有些语无伦次。
   4. ...ad-libbed phrases.
      临时插入的话
2. N-COUNT 即兴（或临时插入）的台词
   An ad-lib is something which is said without having been planned or written beforehand.
   1. Every time I fluffed a line Lenny got me out of trouble with a brilliant ad-lib.
      每次我台词出错时，伦尼都通过机智的临场发挥帮我解围。
   2. Ad lib is also an adverb.
      
   3. I spoke from the pulpit ad lib.
      我在讲坛上发表即兴演说。

1. He began comically ad-libbing a script
   他即兴调侃起了一段剧本。
2. He's good at ad-libbing his way out of trouble
   他善于为自己妙语解围。
3. He is rather disjointed when he ad-libs.
   他即兴表演时，有些语无伦次。
4. Every time I fluffed a line Lenny got me out of trouble with a brilliant ad-lib.
   每次我台词出错时，伦尼都通过机智的临场发挥帮我解围。
5. I lost my notes and had to ad-lib the whole speech.
   我把讲稿丢了，只好临时说了一通。
6. He made a few ad-lib remarks.
   他说了几句即兴的评论。
7. The spokeswoman made a few ad-lib comments for the press.
   女发言人向报界即席作了几句评论。
8. She can talk ad-lib on just about any subject.
   她能就任何话题即兴开讲。
9. She forgot her lines and had to ad-lib.
   她忘了台词，只得临时编造。
10. I lost the notes for my talk and had to ad-lib.
    我把讲稿弄丢了，所以只好即席发言。

noun

1. remark made spontaneously without prior preparation
   1. his ad-libs got him in trouble with the politicians

verb

1. perform without preparation
   1. he extemporized a speech at the wedding

   Synonym:    improviseimprovizeextemporizeextemporise

adj

1. with little or no preparation or forethought
   1. his ad-lib comments showed poor judgment
   2. an extemporaneous piano recital
   3. an extemporary lecture
   4. an extempore skit
   5. an impromptu speech
   6. offhand excuses
   7. trying to sound offhanded and reassuring
   8. an off-the-cuff toast
   9. a few unrehearsed comments

   Synonym:    extemporaneousextemporaryextemporeimpromptuoffhandoffhandedoff-the-cuffunrehearsed

2. said or done without having been planned or written in advance
   1. he made a few ad-lib remarks

   Synonym:    spontaneousunwritten