Staff member Ou Rong (L) writes "Hebei Stay Strong" on the protective suit of his colleague Song Haifeng in Shijiazhuang, north China's Hebei Province, Jan. 18, 2021. On Jan. 8, a nucleic acid test laboratory named Huoyan, or Fire Eye, was built in only 10 hours and put into use in 21 hours in Shijiazhuang. It can test up to 1 million samples a day, significantly improving the city's testing capability. (Xinhua/Jin Haoyuan)
