intermediary
n
~ (between sb and sb) person who acts as a means of communication between two or more others 中间人; 调解人; 斡旋人
They disliked each other too much to meet, so they conducted all their business through an intermediary. 他们彼此交恶不愿相见, 有事均通过中间人处理. intermediary, adj acting in such a way 居间的; 中间人的; 调解的
play an intermediary role in a dispute 在一场争吵中起调停人的作用.