ex.tem.po.rar.yadj.(形容词)Spoken, done, or composed with little or no preparation or forethought.See Synonyms at extemporaneous 即席的,即兴的:未经或很少准备或构思而讲的、做的或谱写的参见 extemporaneous来源:From extempore 源自 extempore【引伸】extem.porar.ily