•a definitive judgment/ruling最终判决

•There are no definitive answers/solutions to this problem.这个问题没有彻底的解决办法。

•The police have no definitive proof of her guilt.员警并未掌握她犯罪的确凿证据。

•He's written the definitive (= best and most complete) guide to Britain's Lake District.他写出了最完美的英国湖区指南。