こうご交互kougo
1.

A situation where two different entities or actions occur in an alternating manner or sequence, providing a balanced interplay between them.

2.

The practice of alternating roles or behaviors between two parties, allowing each to take turns in a shared activity.

3.

A more formal expression describing the concept of taking turns or doing something in succession, often used in various contexts to indicate reciprocity or mutual exchange.

Example:

好況と不況は交互に来る。