一、并列连词表转折,常用以引出与前文相对照或意义相反的词语或分句,用在句中,其后不加逗号,多译为“但是,可是,不过,然而”等。例如:1.Life is limited,but there is no limit to learning.生命有限,学无止境。2.I am very poor,but I am very happy.我很穷,但是我很快乐。3.Not you but I am to blame.不是你而是我应该负责。二、用于否定词,疑问词加doubt,deny,question等之后,无实际意义,相当于 First, the transition of co-ordinated word lists is often used to elicit words or clauses that are in contrast with the previous text or have opposite meanings. They are used in sentences that are not followed by commas. They are often translated as “but, but, but nevertheless” and so on. For example: 1.Life is limited, but there is no limit to learning. Life is limited, learning is endless. 2. I am very poor, but I am very happy. I am poor, but I am very happy. 3.Not you but I am to blame. It’s not you but I should be responsible. Second, for negative words, question words plus doubt, deny, question, etc., no practical significance, equivalent to