- 1
To extemporize is to speak, play, or deal with something without a prepared plan — to invent it in the moment. A musician may extemporize a solo; a teacher may extemporize when the lesson runs off the page; a speaker may extemporize when the notes are left at home. It is more formal and more than improvise, which is the word most people actually say. American English -ize; British English often extemporise. You can extemporize on a theme (especially in music) or simply extemporize when something unexpected happens. It does not mean you had no knowledge — only that you had no finished script.
即興發揮、即席演說（或演奏）
組成From extempore + -ize.
同家族的字
- extemporethe base the verb is built on
- extemporaneousadjective from the same Latin ex tempore
- extemporizationthe noun of this verb
原始詞典資料2 筆記錄
以下是外部詞典記錄的用法，原文照列，我們還沒有寫成教學內容。上面的說明才是我們自己寫的；有些用法可能上面已經講過了。
extemporizeverb
- 1
To perform or speak without prior planning or thought; to act in an impromptu manner; to improvise.
- "Will you please tell me whose music you have been playing?" . . . "It's nobody's, miss." "Do you mean you have been extemporizing all this time?"
- But while some of his predecessors liked to extemporize, Obama prefers the message to be just so.
- 2
To adapt, improvise, or devise action or speech in an impromptu or spontaneous manner.
- As the music came fresher on their ears, they danced to its cadence, extemporizing new steps and attitudes.
- The small jelly-speck, which we call the amoeba, has no organs save what it can extemporize as occasion arises.
資料來源：英文維基詞典 English Wiktionary（CC BY-SA 4.0）。 原文照列，未經改寫。