broker
noun [ C ] uk/ˈbrəʊ.kər/ us/ˈbroʊ.kɚ/
经纪人，掮客
a person who buys and sells foreign money, shares in companies, etc., for other people
a commodity/insurance/mortgage broker 商品／保险／抵押经纪人
I called my broker for advice about investing in the stock market. 我给我的经纪人打电话咨询股市投资的问题。
（尤指政府的）中间人，调停人
a person who talks to opposing sides, especially governments, making arrangements for them or bringing disagreements to an end
During the war Wallas became a power broker in governmental circles. 战争期间华莱士成了政界的权力经纪人。
broker
verb [ T ] uk/ˈbrəʊ.kər/ us/ˈbroʊ.kɚ/
作为经纪人（或中间人）安排（交易、协议等）
to arrange something such as a deal, agreement, etc. between two or more groups or countries
The diplomats have failed in their attempts to broker a ceasefire. 外交官们促成停火的尝试已告失败。