broker

1. N-COUNT A broker is a person whose job is to buy and sell securities, foreign money, real estate, or goods for other people. 经纪人; 掮客[商业]

2. V-T If a country or government brokers an agreement, a ceasefire, or a round of talks, they try to negotiate or arrange it. 斡旋

The United Nations brokered a peace in Mogadishu at the end of March. 联合国于3月底在摩加迪沙促成了一场和平谈判。