extemporized
v. 即興創作,即席演奏( extemporize的過去式和過去分詞 )
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.
他完全脫稿,慷慨激昂地進行即席演說。
The president extemporized a speech after the working dinner.
總裁即席發表了一篇工作餐後演說.
He extemporized a speech at the wedding.
他在婚禮上發表了即席講話.