Take closer look at smiles of children on way back home

(180202) -- YINCHUAN, Feb. 2, 2018 (Xinhua) -- A child looks out from train windows at Yinchuan Railway Station in Yinchuan, northwest China's Ningxia Hui Autonomous Region, Feb. 1, 2018. The 2018 Spring Festival travel rush, known as the Chunyun, started on Thursday and will last till March 12. About 2.98 billion trips are expected to be made during the Chunyun. The Spring Festival, or Chinese Lunar New Year, falls on Feb. 16 this year.(Xinhua/Du Muwen)