The upper part (file) of this combo photo taken by Pan Jiamin shows a resident watering flowers in Yumin village in Shenzhen, south China's Guangdong Province. The lower part of the combo photo taken by Mao Siqian on Sept. 7, 2017 shows residents dancing at a community culture plaza in Yumin village. This year marks the 40th anniversary of China's reform and opening-up policy. Over the past four decades, Shenzhen has developed from a small fishing village to a metropolis. (Xinhua)