College students show their tickets for the new high-speed railway on a train in Haikou, capital of south China's Hainan Province, Dec. 30, 2015. The 345-km Western Ring Railway in Hainan was put into operation on Wednesday, completing the world's first high-speed train line circling an island. The western stretch, with a designed speed of 200 km per hour, has 16 stops in six cities and counties, linking provincial capital Haikou with Sanya, a tropical tourist spot. (Photo: Xinhua/Guo Cheng)
