This combo photo shows people peeking through train windows as they see off friends and relatives at the Beijing Railway Station in Beijing, capital of China, Feb. 3, 2007 (top, photo taken by Li Wen); and a man waving goodbye to his family members who are aboard a departing train at the Shijiazhuang Railway Station in Shijiazhuang, north China's Hebei Province, Jan. 21, 2019 (bottom, photo taken by Liang Zidong). (Xinhua)