Aerial photo taken on Oct. 2, 2020 shows the citizen center and Lianhua Mountain park in Shenzhen, south China's Guangdong Province. Known as a paragon of opening-up and development, Shenzhen in Guangdong Province is one of China's earliest special economic zones. Starting from a small town, it has developed into a key economic hub in the past 40 years. (Xinhua/Liang Xu)
