He is described as a Texas oil millionaire and environmentalist, which might appear to be self-contradictory.他被描述为得克萨斯州的石油大亨和环境保护者，这看来可能有些自相矛盾。The idea of a square circle is self-contradictory.正方形的圆这个概念自相矛盾。He is notorious for making unexpected, often self-contradictory, comments.他发表的那些出人意料而且经常自相矛盾的评论令他臭名昭著。Your argument is self-contradictory.你的论点自相矛盾。