Sanitation workers have a reunion dinner at Gongwan Road sanitation station in Luyang District, Hefei, east China's Anhui Province, Jan. 24, 2022. Local urban management bureau on Monday offered a reunion dinner for more than 40 sanitation workers who choose to stay put at their positions during the upcoming Spring Festival. (Xinhua/Zhou Mu)

Sanitation workers have a reunion dinner at Gongwan Road sanitation station in Luyang District, Hefei, east China's Anhui Province, Jan. 24, 2022. Local urban management bureau on Monday offered a reunion dinner for more than 40 sanitation workers who choose to stay put at their positions during the upcoming Spring Festival. (Xinhua/Zhou Mu)

Sanitation workers have a reunion dinner at Gongwan Road sanitation station in Luyang District, Hefei, east China's Anhui Province, Jan. 24, 2022. Local urban management bureau on Monday offered a reunion dinner for more than 40 sanitation workers who choose to stay put at their positions during the upcoming Spring Festival. (Xinhua/Zhou Mu)

Sanitation workers have a reunion dinner at Gongwan Road sanitation station in Luyang District, Hefei, east China's Anhui Province, Jan. 24, 2022. Local urban management bureau on Monday offered a reunion dinner for more than 40 sanitation workers who choose to stay put at their positions during the upcoming Spring Festival. (Xinhua/Zhou Mu)

Sanitation workers have a reunion dinner at Gongwan Road sanitation station in Luyang District, Hefei, east China's Anhui Province, Jan. 24, 2022. Local urban management bureau on Monday offered a reunion dinner for more than 40 sanitation workers who choose to stay put at their positions during the upcoming Spring Festival. (Xinhua/Zhou Mu)