reciprocitarian

例句：

1. 1. The agreement between the two countries is based on a reciprocal understanding of each other's needs and interests.
   两国之间的协议建立在对彼此需求和利益的相互理解基础上。
2. 2. The teacher was very supportive of her students' efforts to improve their academic performance.
   这位老师非常支持学生们努力提高学习成绩的努力。
3. 3. In a reciprocal exchange, both parties benefit from the transaction.
   在互惠交换中，双方都能从交易中获得利益。