extempore

adj, adv (spoken or done) without previous thought or preparation; impromptu 无准备的; 即席的: an extempore speech 即席讲话 * speak extempore, ie without notes 即席发言.

expressionless, expressive, expressively, expressiveness, expressly, expressway, expressway (also throughway), expropriate, expropriation, expulsion, expunge, expurgate, expurgation, exquisite, exquisitely, exquisiteness, ext, extant, extemporaneous, extemporaneously, extemporization, extemporisation, extemporize, extemporize, extemporise, extend, extended, extended family, extension, extensive, extensively, extensiveness, extent, extenuate, extenuating, extenuation, exterior, exterminate, extermination, external, external evidence, external examination,