Opening ceremony for postgraduate students 2019 at Xi'an Jiaotong University held in Shaanxi

New postgraduate students sing a patriotic chorus during the opening ceremony for postgraduate students 2019 at Xi'an Jiaotong University in Xi'an, northwest China's Shaanxi Province, Sept. 7, 2019. Meanwhile, over 7,000 postgraduate and doctoral students attended the activities to mark the first year of Western China Science & Technology Innovation Harbour. (Xinhua/Shao Rui)