A father plays a game with his daughter at Zhengzhou East Railway Station in Zhengzhou, central China's Henan Province, Jan. 14, 2025. The Spring Festival, China's biggest traditional holiday, will fall on Jan. 29 this year. The Spring Festival travel rush, or chunyun, the world's largest annual human migration known for its high transportation demand as millions return home for family reunions, kicked off on Tuesday. (Xinhua/Li Jianan)

Two kids gesture aboard a train bound for Guiyang, southwest China's Guizhou Province, at Shanghai Hongqiao Railway Station in east China's Shanghai, Jan. 14, 2025. The Spring Festival, China's biggest traditional holiday, will fall on Jan. 29 this year. The Spring Festival travel rush, or chunyun, the world's largest annual human migration known for its high transportation demand as millions return home for family reunions, kicked off on Tuesday. (Photo by Chen Haoming/Xinhua)

A boy gestures aboard train T258 from Urumqi, northwest China's Xinjiang Uygur Autonomous Region, to Lanzhou, northwest China's Gansu Province, Jan. 14, 2025. The Spring Festival, China's biggest traditional holiday, will fall on Jan. 29 this year. The Spring Festival travel rush, or chunyun, the world's largest annual human migration known for its high transportation demand as millions return home for family reunions, kicked off on Tuesday. (Xinhua/Chen Shuo)

Travelers walk in Hefei Railway Station in Hefei, east China's Anhui Province, Jan. 14, 2025. The Spring Festival, China's biggest traditional holiday, will fall on Jan. 29 this year. The Spring Festival travel rush, or chunyun, the world's largest annual human migration known for its high transportation demand as millions return home for family reunions, kicked off on Tuesday. (Xinhua/Du Yu)