extemporized
v. 即兴创作,即席演奏( extemporize的过去式和过去分词 )
If you extemporize, you speak, act, or perform something immediately, without rehearsing or preparing it beforehand.
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。
The president extemporized a speech after the working dinner.
总裁即席发表了一篇工作餐后演说.
He extemporized a speech at the wedding.
他在婚礼上发表了即席讲话.