a series of stages through which an organism passes between recurrences of a primary stage
the course of developmental changes in an organism from fertilized zygote to maturity when another zygote can be produced
双语例句
Most accounting entities are assumed to have an indefinite life. 大多数会计主体被假设有一个无限定的生存期。
Pleural effussion of lung cancer is a common complication in late lung cancer, and it acutely affects patients' quality of life and life span. 摘要肺癌胸腔积液是肺癌晚期的常见并发症，严重地影响患者的生活质量和生存期。
The bug attains different states in the life cycle. 缺陷在其生命周期中会处于许多不同的状态。
Aging is the neglected stepchild of the human life cycle. 衰老过程是人类生命周期中被忽视的非亲生儿。
