To officiate is to carry out an official duty, especially at a ceremony. A priest or pastor officiates at a wedding or a funeral: they lead the service and do the formal parts. A judge or a mayor may officiate at a public event in the same spirit — they are there to do what the role asks.

To officiate Officiate（主持） is指的是 to carry out an official duty執行一項正式職務， especially at a ceremony尤其是在典禮上。A priest or pastor神父或牧師 officiates at a wedding or a funeral會在婚禮或喪禮上主持儀式： they他們 lead the service主導整個儀式 and且 do the formal parts處理正式的部分。A judge or a mayor法官或市長 may officiate at a public event in the same spirit也可能以同樣的精神在公開場合主持活動 — they他們 are there to do what the role asks在那裡做這個角色該做的事。

Sports people use it too: the referee officiates the match, meaning they are the official in charge of the rules.

Sports people體育界的人 use it too也會用這個字： the referee officiates the match裁判 officiate（執法）比賽， meaning也就是說 they他們 are the official in charge of the rules是負責規則的正式裁判人員。

The word feels formal. You would not say you officiate at a birthday party unless you were joking.

The word這個字 feels formal語氣很正式。You你 would not say不會說 you officiate at a birthday party你 officiate 一場生日派對 unless you were joking除非你是在開玩笑。

Though actually, the heart of it is “do the duty of the office,” not church alone; church and sport are simply the places learners meet it most.

Though actually不過其實， the heart of it這個字的核心 是「執行這個職位該做的職責」“do the duty of the office,” not church alone並不只限於教會場合； church and sport教會和體育場合 are simply the places learners meet it most只是學習者最常遇到這個字的兩個場合。