1、but作为连词，意思是但是、不过、而、相反，例句：She's very hard-working but not very imaginative.她工作很努力但是缺少想象力。
2、She's not a painter but a writer.她不是画家而是作家。
3、but也可以作为介词，意思是除…外。
4、Eventually，all but one of them promised to come to his birthday party.最后，除了一个人外他们都答应来参加他的生日派对。
5、but作副词表示强调，Everyone，but everyone，will be there.每个人，请注意是每个人，都必须到。
6、but还有仅仅、只是的意思，She’s but a young girl.她只是个小女孩。
