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extemporise的英文翻译是什么意思，词典释义与在线翻译：
英英释义
Verb:
-
perform without preparation;
"he extemporized a speech at the wedding"
extemporise的用法和样例：
例句
- He had to extemporize because he had forgotten to bring his notes.
他因为忘了带讲稿，只好即席发言。
