Concessive complex sentence is a very important category among the complex sentences in modern Chinese. In the viewpoint of semantics, it is essentially characterized by the disjunctive relationship ( i.e. contrast or opposition) between clause A and clause B in a complex sentence. 转折复句是现代汉语复句中比较重要的一种类型,从语义分析的角度出发,转折复句的A与B之间存在相反相对关系是与其它类型的复句区分开来的根本特征。