Group 1 - The article highlights the renovation and upgrade of existing sports venues in Guangdong to host the 15th National Games, emphasizing sustainability and cost-effectiveness [1][2] - The Guangzhou Tianhe Sports Center has undergone significant upgrades using energy-efficient materials and smart lighting systems, enhancing its functionality for upcoming events [1] - The approach taken for the National Games includes utilizing over 90% of existing venues, avoiding the construction of new large-scale facilities, which effectively reduces hosting costs [1] Group 2 - The Dinghu New District Sports Center in Zhaoqing has made small-scale upgrades to meet event requirements, including creating a spectator experience area with equipment suitable for children [2] - The 21-year-old Huizhou Sports Center has transformed its outdoor space into a children's playground and skate park, promoting social and fitness activities [2] - The upgrades to sports facilities and the creation of public spaces are seen as enhancing the quality of life for residents, driven by the hosting of the National Games [2] Group 3 - Guangdong's robust industrial system supports the strategy of upgrading existing venues rather than building new ones, aligning with the province's focus on manufacturing and modern industrial competitiveness [2] - During the 14th Five-Year Plan period, Guangdong aims to develop nine trillion-level industrial clusters and has a significant number of national and provincial manufacturing champions [2]