extemporize

US [ɪkˈstempəˌraɪz]
UK [ɪkˈstempəraɪz]
  • v.临时制作;即席发(言);即兴演奏
  • Web即席演说;即席发言;当场作成
Simple Present:extemporizes  Present Participle:extemporizing  Past Participle:extemporized  
extemporize
v.
1.
即席发言;即兴表演to speak or perform without preparing or practising