extemporizing的中文翻譯是什麼意思

VERB即席演說;即興表演

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。