[Purpose/significance]Combining with the background of the three phases of“the new period of building a well-off society in an all-round way”“the foundation period of building a modern power”and“the upgrading period of sports diplomacy strategy”,this paper determines th...MORE [Purpose/significance]Combining with the background of the three phases of“the new period of building a well-off society in an all-round way”“the foundation period of building a modern power”and“the upgrading period of sports diplomacy strategy”,this paper det...