Photo taken on Dec. 2, 2020 shows the construction site of Meizhou Bay cross-sea bridge of the Fuzhou-Xiamen high-speed railway in southeast China's Fujian Province. The 14.7-km-long bridge is part of the province's Fuzhou-Xiamen high-speed railway, the first cross-sea high-speed railway in China, which is expected to be put into operation in 2022.(Photo: Xinhua)

Laborers work at the construction site of Meizhou Bay cross-sea bridge of the Fuzhou-Xiamen high-speed railway in southeast China's Fujian Province, Dec. 2, 2020. The 14.7-km-long bridge is part of the province's Fuzhou-Xiamen high-speed railway, the first cross-sea high-speed railway in China, which is expected to be put into operation in 2022. (Photo: Xinhua)

Photo taken on Dec. 2, 2020 shows the construction site of Meizhou Bay cross-sea bridge of the Fuzhou-Xiamen high-speed railway in southeast China's Fujian Province. The 14.7-km-long bridge is part of the province's Fuzhou-Xiamen high-speed railway, the first cross-sea high-speed railway in China, which is expected to be put into operation in 2022. (Photo: Xinhua)