mixed cycle

例句：

1. 1.The mixed cycle of life is a complex process that includes both growth and decay.
   生命的混合周期是一个复杂的过程，包括生长和衰亡。
2. 2. The mixed cycle of the economy has been a source of concern for policymakers.
   经济的混合周期一直是政策制定者关注的问题。
3. 3. The mixed cycle of emotions can be challenging to manage, especially during times of stress or change.
   情感的混合周期可能很难管理，尤其是在压力或变化时期。