extemporize的过去式是：extemporized。extemporize的意思是v.即席演说；即兴演奏；当场作成。extemporize【近义词】improvise即兴创作。
一、词典解释点此查看extemporize的详细内容
1.即席演说;即兴表演
If youextemporize, you speak, act, or perform something immediately, without rehearsing or preparing it beforehand.
e.g. He completely departed from the text and extemporized in a very energetic fashion.
他完全脱稿，慷慨激昂地进行即席演说。
二、网络解释
1. 即席演说,即席作曲：extemporaneous 即席,临时作成的 |extemporize 即席演说,即席作曲 | extend 延长
2. extemporize的解释
2. 即席演说：extemporization 即席作成 |extemporize 即席演说 | extemportize 即席演说
3. 当场作成：extemporizationextemporizeextemportize 即席演说 |extemporize 当场作成 |extemporize 即兴演奏
4. 即兴演奏：extemporize 当场作成 |extemporize 即兴演奏 | extemportize 演唱
三、例句
He had to extemporize because he had forgotten to bring his notes.
他因为忘了带讲稿，只好即席发言。
四、经典引文
I played the organ at which he had extemporized so often.
出自：E. Heathextemporize的相关近义词
improvise、wing、ad-lib、play it by ear、wing it、extemporise、improvize
extemporize的相关临近词