official secret
noun /əˌfɪʃl ˈsiːkrət/
/əˌfɪʃl ˈsiːkrət/
- (in the UK) a piece of information known only to the government and some of its employees, which it is illegal for them to tell anyone under the Official Secrets Act
公务秘密(英国 “公务秘密法” 禁止政府工作人员泄露的信息)