“即兴的”用英语怎么说

幽默和即兴的台词确保了这出戏自始至终的流畅。The humour and throwaway lines ensure that the piece never loses its pace.每星期举行一次即兴的歌舞表演.A weekly cabaret was conjured up.野花依然绽放出即兴的美丽.Blooms of wildflowers sprout a bouquet of impromptu beauty....