Chinese Vocabulary宣告to declarexuāngàoUsage & ExplanationTo announce something formally.Hear It in ContextThis word appears in 1 episode:Integrity Returns: The Fifty-Four Year Wait Is OvernormalRelated Words电解to electrolyze隔热罩heat shield黑障communications blackout近地轨道near-Earth orbit深空探索deep space exploration水冰water ice跳板springboard象征symbol再入reentry