officiate
verb [ I ] formal uk/əˈfɪʃ.i.eɪt/ us/əˈfɪʃ.i.eɪt/
主持(仪式或其他公众活动)
to be in charge of or to lead a ceremony or other public event
A priest officiated at the wedding. 一位神父主持了婚礼。
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