Aerial photo taken on Feb. 22, 2020 shows laborers working at a construction site of an expressway project in Shaoxing, east China's Zhejiang Province. Construction industry has gradually resumed amid strict prevention and control measures against the novel coronavirus in the city. (Xinhua/Huang Zongzhi)

Aerial photo taken on Feb. 22, 2020 shows laborers working at a construction site of an expressway project in Shaoxing, east China's Zhejiang Province. (Xinhua/Huang Zongzhi)

Laborers work at a construction site of an expressway project in Shaoxing, east China's Zhejiang Province, Feb. 22, 2020. (Xinhua/Huang Zongzhi)

Laborers work at a construction site of an expressway project in Shaoxing, east China's Zhejiang Province, Feb. 22, 2020. (Xinhua/Huang Zongzhi)

Laborers work at a construction site of an expressway project in Shaoxing, east China's Zhejiang Province, Feb. 22, 2020. Construction industry has gradually resumed amid strict prevention and control measures against the novel coronavirus in the city. (Xinhua/Huang Zongzhi)