extemporise

英

美

v.  临时制作；当场作成；即席发言

过去分词：extemporised　现在分词：extemporising　过去式：extemporised　

英英释义

verb

• perform without preparation
  1. he extemporized a speech at the wedding
  Synonym:improviseimprovizead-libextemporize