esides 意为:“除...之外(还有).”有附加含义.与in addition to 同义. except 意为:“除...以外(没了).”有排除的含义. except for 意为:“除...之外,其他都...”用来评价事物的美中不足. but 意为:除了.语气强烈. 如: She knows two other foriegn languages besides English. 她除了英语外还知道两种其他外语. He goes to school every day except Sunday. 他除了周日每天都去学校. Your composition is good except for a few spelling mistakes. 你的作品除了有些拼写错误外都很好. I really want to tell you the truth,but I can't. 我真的很想告诉你事实,可是我不能.