Top: Photo taken in 1965 by Zheng Zhensun shows employees of a car-hailing agency cleaning cars in Beijing, capital of China. Bottom: Photo taken on Aug. 25, 2019 by Zhang Xiaoyu shows taxi driver Mu Huaidong heading to the destination after taking an order by online car-hailing platforms in Beijing. In 1949 when the People's Republic of China was founded, the Chinese people faced a devastated country that needed to be rebuilt from scratch after decades of warfare and chaos. After decades of unremitting endeavors and dedication by the Chinese people, China has grown to be the world's second largest economy. In 1952, China's GDP was 30 billion U.S. dollars, while in 2018, its GDP reached 13.61 trillion U.S. dollars, an increase of 452.6 times. A group of combo photos give you a glimpse of what Chinese people did decades ago and what they do right now. Undoubtedly, people from all walks of life in China with hard work and wisdom have made contributions to the country's development. (Xinhua)