The dormant period is another stage in the life cycle of the plant.休眠期是这种植物生活史的另一个阶段。

The life cycle of new electronic products is becoming ever shorter.新的电子产品生命周期越来越短。

the stages of the familial and economic life cycle家庭和经济兴衰周期的各个阶段

Each new product would have a relatively long life cycle.每一种新产品都会有一个相对较长的生命周期。