instructive/ɪnˈstrʌk.tɪv/形容词有启发性的;有教育意义的The documentary was not only entertaining but also highly instructive, providing viewers with valuable insights into the history of the region.这部纪录片不仅富有娱乐性,而且高度富有教育意义,为观众提供了有价值的对该地区历史的深刻见解。想跟读,去练习