3.I must disabuse you of your feelings of grandeur.
必须去消除你的傲气
4.If you think I’m going to lend you money, I must disabuse you of te wrong idea.
你若认为会借钱给你,倒要劝你打消那念头。
5.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.