Take closer look at smiles of children on way back home

Two children play on a train from Guangzhou to Dazhou, 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/Liu Kun)