/tə sɜrv ə ˈpʌblɪk ˈɔfɪs/ – Phrase
Definition: thi hành công vụ.
A more thorough explanation: To serve a public office means to hold a position of authority or responsibility within a government or governmental organization, typically involving the performance of official duties for the benefit of the public.
Example: John was elected to serve a public office as the city councilman for his district.