Children play at a children center in Hebian village group in Mengban Town of Mengla County, southwest China's Yunnan Province, Nov. 16, 2019. The 60 families of Yao ethnic group in Hebian villager group were living in poor conditions in the remote mountainous area. In recent years through the help of local government and companies, the houses, water and power supply, and roads here have been upgraded comprehensively. (Xinhua/Yang Zongyou)