exchange process

例句：

1. 1. They exchanged their stories for a cup of coffee.
   他们用一杯咖啡换了彼此的故事。
2. 2. The company exchanges its shares with other companies.
   该公司与其他公司进行股票交换。
3. 3. After the meeting, they exchanged pleasantries and plans for future collaboration.
   会议结束后，他们愉快地交流了未来合作的计划。