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English definition of “extemporaneous”

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extemporaneous

adjective uk   /ekˌstem.pəˈreɪ.ni.əs/ formal us  
done or said without any preparation or thought: an extemporaneous speech
Translations of “extemporaneous”
in Chinese (Traditional) 即興的, 無準備的, 即席的…
in Chinese (Simplified) 即兴的, 无准备的, 即席的…
(Definition of extemporaneous from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
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