hard opening
noun [ C ] business specialized uk/ˌhɑːd ˈəʊ.pən.ɪŋ/ us/ˌhɑːrd ˈoʊp.nɪŋ/
（公司等）正式开放
an occasion when a business is opened to the public for the first time, not just to a limited number of people, in a way that is intended to attract a lot of attention
Compare: soft opening