
A man works at the construction site of Jugezhuang tunnel of Beijing-Shenyang high speed railway amid busy resumption of production in Beijing, capital of China, April 29, 2020. (Xinhua/Ju Huanzong)

A man works at the construction site of Jugezhuang tunnel of Beijing-Shenyang high speed railway amid busy resumption of production in Beijing, capital of China, April 29, 2020. (Xinhua/Ju Huanzong)