broking

例句：

1. 1. He is a professional broking who helps clients buy and sell properties.
   他是一个专业的经纪人，帮助客户买卖房产。
2. 2.The broker was able to negotiate a favorable deal for the buyer.
   这位经纪人成功地为买家争取到了一个有利的交易条件。
3. 3. Broking firms are responsible for managing the financial affairs of their clients.
   经纪公司负责管理客户的财务事务。