柯林斯詞典extemporize /?k?st?mp??ra?z/ (extemporizing,extemporized,extemporizes) BRIT also extemporise1. V-I If you extemporize, you speak, act, or perform something immediately, without rehearsing or preparing it beforehand. 即席演說; 當(dāng)場表演[正式] He completely departed from the text and extemporized in a very energetic fashion. 他完全脫了稿并以一種精力非常充沛的樣子即席演說。 返回 extemporize劍橋詞典to speak or perform without any preparation or thought 即席發(fā)言；即興表演（或演奏） I'd lost my notes and had to extemporize. 我把講稿弄丟了，只好臨場即興發(fā)揮。 返回 extemporize