exchange bank

例句：

1. 1. They exchanged theirstories for a cup of coffee.
   他们用一杯咖啡换了彼此的故事。
2. 2. Thecompany exchanged its shareswith the government.
   公司与政府进行了股份交换。
3. 3. The two countries areexchanging diplomats to strengthen theirrelations.
   两国正在交换外交官以加强关系。