China's Macao Special Administrative Region (SAR) Chief Executive Chui Sai On addresses the opening ceremony of an exhibition to mark the country's third National Security Education Day in Macao, south China, April 15, 2018. (Xinhua)
Macao holds exhibition to mark National Security Education Day
Source:Xinhua| 2018-04-15 21:43:20|Editor: Mengjie
