The planetarium staff also prepared talks for radio broadcast.

天文馆的工人员还要准备稿给电台广播。

I lost my notes and had to ad-lib the whole speech.

我把稿丢，只好临一通。

He tailored his speech for his audience.

他为听众修改稿。

He amended his speech by making some additions and deletions.

他对稿些增删修改。

The speaker has to ad- lib his speech when his papers suddenly blow off the podium.

当稿突然掉下台，不得不现编词。

He has to extemporise because he has forgotten to bring his note

他因为忘带稿,只好即席发言。