Aerial photo taken on July 30, 2020 shows the construction site of a bridge section of a highway linking Shenzhen and Zhongshan in south China's Guangdong Province. (Xinhua/Huang Guobao)

Workers work at the construction site of a bridge section of a highway linking Shenzhen and Zhongshan in south China's Guangdong Province, July 29, 2020. (Xinhua/Yan Ran)

Aerial photo taken on July 30, 2020 shows the construction site of a bridge section of a highway linking Shenzhen and Zhongshan in south China's Guangdong Province. (Xinhua/Huang Guobao)