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A technician works at Guangyuanxincun Subway Station on Guangzhou Subway Line 11, in Guangzhou, south China's Guangdong Province, Feb. 26, 2020. Major construction projects in Guangdong-Hong Kong-Macao Greater Bay Area have resumed at different levels and areas, with multiple measures in prevention and control of the novel coronavirus disease (COVID-19) on the construction sites. (Xinhua/Lu Ye)