Honored guests attend the opening ceremony of an aerospace exhibition marking the 20th anniversary of Macao's return to the motherland at Macao University of Science and Technolocy in Macao, south China, Dec. 15, 2019. (Xinhua/Cheong Kam Ka)
Aerospace exhibition marking 20th anniv. of Macao's return to motherland kicks off
Source: Xinhua| 2019-12-15 21:53:25|Editor: mingmei
