Students pose for a photo on the campus of Southeast University in Nanjing, east China's Jiangsu Province, June 6, 2016. The Southeast University celebrated its 114th founding anniversary on Monday. (Xinhua/Sun Can)

Students pose for a photo on the campus of Southeast University in Nanjing, east China's Jiangsu Province, June 6, 2016. The Southeast University celebrated its 114th founding anniversary on Monday. (Xinhua/Sun Can)

Students pose for a photo on the campus of Southeast University in Nanjing, east China's Jiangsu Province, June 6, 2016. The Southeast University celebrated its 114th founding anniversary on Monday. (Xinhua/Sun Can)

Graduates pose for a photo on the campus of Southeast University in Nanjing, east China's Jiangsu Province, June 6, 2016. The Southeast University celebrated its 114th founding anniversary on Monday. (Xinhua/Sun Can)