Abstract:Couplets are both linguistic phenomena，Also an art form，Its development has important historical significance。The unique rhythmic characteristics of bet365 sportsbook review、Grammar features、Word meaning system promotes the generation of couplets，The rhythmic characteristics of the five-character poem determine its close linkage with the couplets。Han, Wei to Qi and Liang were the key periods for the development of poetic couplets，It has experienced the process of "positive-negative-combination"。From ancient poetry to Yan Yanzhi，The grammatical rigor and semantic freedom of the couplet develop in inverse proportion and fluctuate violently。Cong Yan Yanzhi、Xie Lingyun starts，The grammatical rigor of the couplet develops in direct proportion to the semantic freedom，Realized dialectical unity。Poets constantly adjust couplets to promote innovation in poetry content and form，The development of couplets has therefore become an important driving force for the innovative development of classical poetry。The development trajectory and rules of couplets，Not only embodies the national characteristics of bet365 sportsbook review literature，More embodies the national wisdom of bet365 sportsbook review thought。

　Keywords:Couplet Five Character bet365 sportsbook review History of bet365 sportsbook review

　　AuthorXie Yan，Associate Professor, School of Liberal Arts, Beijing Normal University (Beijing 100875)。