A drone photo taken on Dec. 7, 2024 shows a view of Gaolan Port Bridge (with twin main towers on the left) and Huangmaohai Bridge (with three main towers on the right) in south China's Guangdong Province. (Photo: Xinhua)

An aerial panoramic drone photo taken on Dec. 4, 2024 shows a view of Gaolan Port Bridge (with twin main towers on the left) and Huangmaohai Bridge (with three main towers on the right) in south China's Guangdong Province. (Photo: Xinhua)

A drone photo taken on Dec. 7, 2024 shows a section of the Huangmaohai Cross-Sea Passage in south China's Guangdong Province. (Photo: Xinhua)

An aerial drone photo taken on Dec. 7, 2024 shows a view of Gaolan Port Bridge (with twin main towers on the left) and Huangmaohai Bridge (with three main towers on the right) in south China's Guangdong Province.(Photo: Xinhua)

An aerial drone photo taken on Dec. 4, 2024 shows a view of Gaolan Port Bridge (with twin main towers on the left) and Huangmaohai Bridge (with three main towers on the right) in south China's Guangdong Province. (Photo: Xinhua)

An aerial drone photo taken on Dec. 4, 2024 shows a view of Gaolan Port Bridge (with twin main towers on the left) and Huangmaohai Bridge (with three main towers on the right) in south China's Guangdong Province. (Photo: Xinhua)

An aerial drone photo taken on Dec. 11, 2024 shows vehicles running on the Huangmaohai Bridge in south China's Guangdong Province. (Photo: Xinhua)