Employees work at a distribution center of Express Mail Service in Hengyang City, central China's Hunan province, Nov. 12, 2017. In recent years, a number of China's technological innovations have been making their moves in the world. Among them, Dockless Shared Bicycles, High-speed Rail, Alipay and E-commerce stand out with a reputation of China's "four great new inventions" in modern times, which have made the daily life of the public more and more convenient. [Photo/Xinhua]