Something that is instructive gives useful information.
例句
It's instructive to compare his technique with Alan Bennett's.把他的手法與艾倫·貝內(nèi)特進行比較很富啟發(fā)意義。...an entertaining and instructive documentary.既富娛樂性又有教育意義的紀錄片
英漢詞典釋義
adj.
有益的,供給知識的,教育的
an instructive book有教育意義的書
英英詞典釋義
Adjective
1. serving to instruct of enlighten or inform
2. tending to increase knowledge or dissipate ignorance;