Top: File photo taken in 1962 by Dong Ronggui shows farmers harvesting safflowers in Yongji, north China's Shanxi Province. Bottom: Photo taken on April 10, 2019 by Cao Yang shows villagers picking forsythia leaves in Hougou Village in Pingding County of Shanxi. As people's living standard enhances, people now attach greater importance to health, which boosts the development of traditional Chinese medical herb plantation. In Pingding, the planting of forsythia leaves has been promoted.

Top: File photo taken in 1960 by Huang Jingda shows a police officer on duty at the Chang'an Avenue in Beijing, capital of China. Bottom: Photo taken on June 26, 2019 by Zhang Chenlin shows police officer Ren Junhan on duty at the Chang'an Avenue in Beijing. Big data and remote control have been applied in traffic flow prediction and traffic light control as traffic management today is geared to digital, intelligent and modern directions.

Top: File photo taken in 1961 by Wu Chunzhan shows technicians restoring clay sculptures unearthed from a tomb of the Tang Dynasty (618-907 A.D.) in Turpan, northwest China's Xinjiang Uygur Autonomous Region. Bottom: Photo taken on July 30, 2019 by Hu Huhu shows Liang Jiangbing (L), Gao Yumin (C) and Guan Yi restoring cultural relics at a conservation center of Xinjiang Museum in Urumqi of Xinjiang.

Top: File photo taken in the 1960s by Lin Hui shows artist Wan Laiming conceiving character images for animated cartoon "The Monkey King" (Part Two). Bottom: Photo taken on June 20, 2019 by Liu Ying shows Su Da, president of Shanghai Animation Film Studio and director of the 3D animated film "Sun Wukong" (Monkey King), viewing modeling design of the monkey king. In the 1960s, Wan and his team members created the animated cartoon "The Monkey King" with more than 100,000 hand-drawn frames.

Top: File photo taken in 1967 by Wang Mingyi shows a film projectionist screening a film in Yudu County, east China's Jiangxi Province. Bottom: Photo taken on July 2, 2019 by Peng Zhaozhi shows Xie Pingguo (1st R, front), a film projectionist who has been devoted in the career for 41 years, screening a film for villagers in Huzhou Village of Ji'an City in Jiangxi.

Top: File photo taken in 1960 by Huang Jingda shows bus conductor Shu Zhiying working on a bus in Beijing, capital of China. Bottom: Photo taken on June 27, 2019 by Huang Zongzhi shows a passenger paying for ticket via mobile payment in Hangzhou, capital of east China's Zhejiang Province. In many cities of China, the payment method of public transportation has progressed from cash, IC cards to today's QR code scanning. (Photos: Xinhua)

Top: File photo taken in 1965 shows oil workers taking out a long rock core for the first time in Daqing, northeast China's Heilongjiang Province. Bottom: Photo taken on June 26, 2019 by Wang Jianwei shows Jiang Hongwei of No 1202 drilling team introducing an advanced drill in use at Daqing Oilfield. Nowadays, workers can realize fast and efficient operation in drilling control rooms with the upgrade of mechanization and automation level.

Top: File photo taken in the 1960s by Tian Ming shows a nursery worker taking care of children at a kindergarten in north China's Tianjin. Bottom: Photo taken on July 8, 2019 by Wang Kai shows Cao Feiran using an online multimedia education platform to teach children at a kindergarten in Jinan, east China's Shandong Province.

Top: File photo taken in 1962 by Hu Wei shows breeder Wang Decheng feeding a four-day-old calf at Xinghuo cattle farm in northeast China's Heilongjiang Province. Bottom: Photo taken on July 10, 2019 by Wang Jianwei shows Zhang Deyu working at a cowshed in a forest farm in Heilongjiang.

Top: File photo taken in 1960 by Cui Xiaohua shows steelworkers observing the rising temperature inside a furnace of Baogang in north China's Inner Mongolia Autonomous Region. Bottom: Photo taken on June 4, 2019 by Liu Lei shows Liu Ming, general foreman of converter of Baogang Group, directing operations for steelmaking via interphone in Baogang Group of Inner Mongolia.