ad lib

名词 ad lib:

1. remark made spontaneously without prior preparation
   同义词：ad-lib

动词 ad lib:

1. perform without preparation
   同义词：improvise, improvize, ad-lib, extemporize, extemporise

形容词 ad lib:

1. said or done without having been planned or written in advance
   同义词：ad-lib, spontaneous, unwritten
2. with little or no preparation or forethought
   同义词：ad-lib, extemporaneous, extemporary, extempore, impromptu, offhand, offhanded, off-the-cuff, unrehearsed

副词 ad lib:

1. without advance preparation
   同义词：ad libitum, spontaneously, impromptu

1. The actress often forgot her lines but was very good at ad libbing.
   那个女演员常忘台词，却极擅长临时拼凑。
2. I had forgotten to bring my notes and had to speak ad lib.
   我忘记带讲稿了，只好临时讲几句。
3. We were told to help ourselves to the food ad lib.
   这些食物让我们随便吃。
4. The actress often forgot her line but was very good at ad lib.
   那个女演员常忘台词，却极擅长临时拼凑。