基本解释abbr.陸軍校級軍官(=field officer)abbr.野戰命令(=field order)abbr.財政官員(=finance officer)abbr.空軍中尉(=flight officer)abbr.(英國等)外交部(=foreign office)同根派生 FO相关词英汉例句He used to work at the FO.他過去在外交部工作。FO更多例句