1. The actress forgot some of her lines and had to adlib. 女演员忘了几句台词，于是只好即兴编凑。
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。
英英解释
n.
1. remark made spontaneously without prior preparation
2. perform without preparation
3. said or done without having been planned or written in advance
4. with little or no preparation or forethought adv.
1. without advance preparation
