Engineers and workers communicate at the construction site of the Hongdao Railway Station in Qingdao, east China's Shandong Province, April 1, 2020. Under strict measures against COVID-19 epidemic outbreak, the construction work of Hongdao Railway Station, part of the Jinan-Qingdao high-speed railway, has been sped up to be completed on schedule. (Xinhua/Li Ziheng)

Engineers communicate at the construction site of the Hongdao Railway Station in Qingdao, east China's Shandong Province, April 1, 2020. Under strict measures against COVID-19 epidemic outbreak, the construction work of Hongdao Railway Station, part of the Jinan-Qingdao high-speed railway, has been sped up to be completed on schedule. (Xinhua/Li Ziheng)

Engineers communicate at the construction site of the Hongdao Railway Station in Qingdao, east China's Shandong Province, April 1, 2020. Under strict measures against COVID-19 epidemic outbreak, the construction work of Hongdao Railway Station, part of the Jinan-Qingdao high-speed railway, has been sped up to be completed on schedule. (Xinhua/Li Ziheng)