Top: Photo taken in 1964 by Liang Yiding shows Gao Xianglan teaching students Chinese at a rural school in north China's Hebei Province. Bottom: Photo taken on July 2, 2019 by Zhu Xudong shows Pan Haili teaching pupils Chinese in Lianzhuang Primary School of Qinghe County in Hebei. Within decades, teaching facilities in rural areas of the country have transformed from self-made boards and pictures to digital tools and multimedia facilities. 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)