reciprocal pronoun

例句：

1. 1. The teacher and the student are reciprocal friends.
   老师和学生是互相的朋友。
2. 2. The exchange of ideas is a reciprocal process.
   交流思想是一个相互的过程。
3. 3. The company's policy of mutual benefit is reciprocal to its competitors.
   公司的互利政策与其竞争对手的政策是相互的。