intransitive relation

例句：

1. 1. The intransitive relationship between the two countries is complex.
   两国之间的单向关系复杂。
2. 2. The teacher explained the problem to the student in a way that was intransitive.
   老师以单向的方式向学生解释了这个问题。
3. 3. The intransitive nature of the relationship means that it cannot be easily resolved.
   这种单向性质的关系意味着它不容易解决。