to declare (publicly); to announce

(abbr. for 對外宣傳|对外宣传[dui4 wai4 xuan1 chuan2]) (one's own) international public relations efforts; (another nation's) external propaganda

official announcement (neologism c. 2018)

promotional material; propaganda

see 武宣縣|武宣县[Wu3 xuan1 Xian4]