Xie Xiaopeng, a railway policewoman, takes a selfie in Hefei, capital of east China's Anhui Province, Jan. 29, 2019. Railway policemen and policewomen in Hefei experienced their busiest time in a year during the Spring Festival travel rush. Policewomen Xie Xiaopeng and Zhou Danlin are responsible for some routine work, including patrol work and publicity work of safety knowledge on high-speed trains. (Xinhua/Liu Junxi)