If you disabuse someone of something, you tell them or persuade them that what they believe is in fact untrue.
例句
Their view of country people was that they like to please strangers. I did not disabuse them of this notion.他们认为乡下人爱讨好陌生人，对此观点我并未予以纠正。
英汉词典释义
vt.
去除…的错误想法
If you think I’m going to lend you money, I must disabuse you of te wrong idea.你若认为我会借钱给你，我倒要劝你打消那念头。I would like to disabuse your mind of the idea that your cousin has a feeling of hostility to you. On the contrary he spoke to me in the most friendly terms of you.我想消除你以为你的堂兄对你有敌意的误会。相反，他跟我说到你时，是以最友善的口吻说的。I must disabuse you of your feelings of grandeur.我必须去消除你的傲气。