Top: File photo taken in 1975 shows workers assembling televisions at a factory in Zhongshan, south China's Guangdong Province. Bottom: Photo taken on June 11, 2019 by Liu Dawei shows Zhang Qi (C), a senior electrical engineer in China's home appliance maker TCL Corp., checking robots' operating conditions at a production line of intelligent televisions in Huizhou, Guangdong Province. With progress of the times, intelligent production, industrial robots and automatic technologies are extensively applied in television manufacturing, leading to the increase in productivity. 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)