mediator [ˈmi:dieɪtə(r)]

以下由轻松背单词网站提供

n.调解人，中介人

a negotiator who acts as a link between parties

He always takes the role of a mediator in any dispute.他总是在争论中充当调停人的角色。
He will appear in the role of mediator.他将出演调停者。