互变现象

例句：

1. 1. The two species have a mutually beneficial relationship.
   这两种物种之间有着互惠互利的关系。
2. 2. The process of interchanging information between different systems is known as communication.
   不同系统间交换信息的过程被称为通信。
3. 3. The team worked together to achieve mutual goals.
   团队共同努力以实现共同目标。