spokesperson

政府发言人

An individual who communicates the position and policies of the government to the public and the media.

向公众和媒体传达政府立场和政策的个人。

部门发言人

A person officially designated to speak on behalf of a specific department within a larger organization (e.g., State Department).

被官方指定代表一个大型组织内特定部门（如国务院）发言的人。

A person authorized to speak for a government ministry (e.g., Ministry of Defence).

工会发言人

An individual who represents and speaks for a trade union or labor union.

代表工会或劳工组织发言的个人。