official/əˈfɪʃ(ə)l; (US) ˈɔːf-/
adj.官方的； 正式的The mass media demanded that all the official documents concerning the sale of this land be made public.大众媒体要求公布有关出售这块土地的全部正式文件。
an official letter公函
official price官方牌价
an official title官衔
official news官方消息
Although the retired architects of the party do not occupy any official positions, they have a lot of authority.虽然党的缔造者们现在不担任正式职务，但他们很有一些影响。