Delegates pose for a family photo during the opening ceremony of a seminar to commemorate the 150th birth anniversary of Sun Yat-sen, a great forerunner of China's democratic revolution, in Macao, south China, Sept. 19, 2016. Organized by China Council for the Promotion of Peaceful National Reunification and the Macao Council for the Promotion of Peaceful Reunification of China, the seminar started in Macao Science Center on Monday. (Xinhua/Cheong Kam Ka)
