the Foreign and Commonwealth OfficeBrE/ðə ˌfɒrən ən ˈkɒmənwelθ ɒfɪs/NAmE/ðə ˌfɔːrən ən ˈkɑːmənwelθ ɑːfɪs/noun[sing. + sing./pl. v.] (abbreviationFCO) theBritishgovernmentdepartmentthatdealswithrelationswithothercountries. ItusedtobecalledtheForeignOfficeanditisstilloftenreferredtoasthis外交和联邦事务部(英国政府部门,旧称 the Foreign Office,现在仍常见此说法)