参考例句

1. Throughout the plan she had to ad-lib constantly.
在整个计划中她不得不经常无准备地做。
2. The speaker had to ad-lib his speech when his papers suddenly blew off the podium.
当演讲稿突然掉下讲台时，演讲者不得不现编词。
3. The speaker has to ad - lib his speech when his papers suddenly blow off the podium.
当演讲稿突然掉下台时，演讲者不得不现编词。
4. The best joke in the play was ad lib.
这出戏中最使人开心的笑话是即兴发挥的。
5. 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。

网络释义

ad lib
即兴而作，随口编; 随意，任意量; 没有限制地; 即兴撰造;
ad-lib
即兴表演; 即兴的; 信口说出; 即兴讲演;
ad-lib impromptu
即兴的;
A is ad-lib
即兴表演，风趣的老师会这麽做;
Ability to Ad-lib
机智;