Staff members perform onboard the first high-speed train G7787 running from Fuyangxi Railway Station to Shanghai Hongqiao Railway Station, Dec. 1, 2019. High-speed railway line linking Shangqiu and Hefei, as well as a section linking Zhengzhou and Fuyang, was put into operation on Sunday. (Xinhua/Liu Junxi)

Staff members and passengers pose for a group photo with the first high-speed train G7787 running from Fuyangxi Railway Station to Shanghai Hongqiao Railway Station in Fuyang, east China's Anhui Province, Dec. 1, 2019. High-speed railway line linking Shangqiu and Hefei, as well as a section linking Zhengzhou and Fuyang, was put into operation on Sunday. (Xinhua/Liu Junxi)

Staff members perform onboard the first high-speed train G7787 running from Fuyangxi Railway Station to Shanghai Hongqiao Railway Station, Dec. 1, 2019. High-speed railway line linking Shangqiu and Hefei, as well as a section linking Zhengzhou and Fuyang, was put into operation on Sunday. (Xinhua/Liu Junxi)

Staff members and passengers pose for a group photo onboard the first high-speed train G7787 running from Fuyangxi Railway Station to Shanghai Hongqiao Railway Station, Dec. 1, 2019. High-speed railway line linking Shangqiu and Hefei, as well as a section linking Zhengzhou and Fuyang, was put into operation on Sunday. (Xinhua/Liu Junxi)

Photo taken on Dec. 1, 2019 shows the first high-speed train G7787 running from Fuyangxi Railway Station to Shanghai Hongqiao Railway Station in Fuyang, east China's Anhui Province. High-speed railway line linking Shangqiu and Hefei, as well as a section linking Zhengzhou and Fuyang, was put into operation on Sunday. (Xinhua/Liu Junxi)

Passengers display their ticket notices onboard the first high-speed train G7787 running from Fuyangxi Railway Station to Shanghai Hongqiao Railway Station, Dec. 1, 2019. High-speed railway line linking Shangqiu and Hefei, as well as a section linking Zhengzhou and Fuyang, was put into operation on Sunday. (Xinhua/Liu Junxi)

An artist performs onboard the first high-speed train G7787 running from Fuyangxi Railway Station to Shanghai Hongqiao Railway Station, Dec. 1, 2019. High-speed railway line linking Shangqiu and Hefei, as well as a section linking Zhengzhou and Fuyang, was put into operation on Sunday. (Xinhua/Liu Junxi)