Students sing on the graduation ceremony of Hong Kong Tertiary Military Training Camp in south China's Hong Kong, Aug. 13, 2017. The graduation ceremony of the 7th Hong Kong Tertiary Military Traning Camp was held at San Wai Barracks of the Chinese People's Liberation Army (PLA) Garrison in the Hong Kong Special Administrative Region (HKSAR) on Sunday. About 140 students from over 10 Hong Kong universities received military trainings and experienced military life during the 11-day camp. (Xinhua/Wang Xi)