Group 1 - Changsha is one of the main host cities for the 16th National Games in 2029 [1] - A meeting was held on January 17, where Mayor Chen Bozhang discussed the preparation work for the event with expert Liu Qingzao [3] - Liu Qingzao shared successful experiences and innovative practices from the 15th National Games, emphasizing refined management and efficient collaboration [3] Group 2 - Mayor Chen expressed gratitude for the support and guidance provided for the preparation work [3] - The hosting of the 16th National Games is seen as a significant opportunity for the development of Changsha's urban capabilities and sports industry [3] - The preparation work is described as a complex system project, requiring all levels of government to adopt a "National Games promote the city" philosophy [3]