to come out in public (revealing one's true personality, opinions etc)
(of a product) to appear on the market or at a trade show etc
Definitions (粵典–words.hk)
動詞
喺電視、舞台等等公眾場合同大眾見面 to make a public appearance on stage, television, etc., for the first time
呢個韓國歌手第一次喺香港電視亮相,就已經好受歡迎。
呢个韩国歌手第一次喺香港电视亮相,就已经好受欢迎。
ni1 go3 hon4 gwok3 go1 sau2 dai6 jat1 ci3 hai2 hoeng1 gong2 din6 si6 loeng6 soeng3, zau6 ji5 ging1 hou2 sau6 fun1 jing4. This Korean singer was already very popular when he first appeared on Hong Kong television.
Definitions (Wiktionary)
verb, intransitive, verb-object
to appear in public, to be shown off
verb, intransitive, verb-object
to appear on stage