Since the first batch of postgraduates from China Agricultural University came to Xihuaizhuang village in Yongledian township, Beijing's Tongzhou district, 10 kilometers away from the capital's ...

BEIJING, May 1 (Xinhua) -- On a rooftop in Shenzhen, the tech hub in south China's Guangdong Province, 24-year-old Xue Haoran watched as drones carrying packages took off one after another, weaving th ...