① impress sb.with sth.（给某人留下…印象）
I hope I can impress my new boss with my diligence.（我希望我的勤勉能给新老板留下印象.）
② impress sth on sb.（给某人留下…印象；使某人理解…的重要）=impress on sb sth.
She impressed on the Government the serious effect of high unemployment.（她使政府意识到高失业率的严重影响.）
impress on sb the importance of (使某人知晓...的重要性)
My father impressed on me the importance of hard work.