exchange for physical

例句：

1. 1. They exchanged their stories about the trip.
   他们交换了关于旅行的故事。
2. 2. The company exchanges its products with other companies for new ones.
   该公司与其他公司交换产品以获得新产品。
3. 3.The students exchanged ideas and opinions during the debate.
   学生们在辩论中交换意见和观点。