life cycle
复数形式
life cycles
1
生命周期, 生物周期
all the different stages of grow and development of a living organism
- The life cycle of a butterfly includes four main stages.
蝴蝶的生命周期包括四个主要阶段。
- She studied the life cycle of frogs for her biology class.
她为生物课研究了青蛙的生命周期。
- Plants have a unique life cycle that involves seeds, growth, and reproduction.
植物有一个独特的生命周期，涉及种子、生长和繁殖。
- They observed the entire life cycle of a plant in the school garden.
他们在学校花园里观察了一株植物的整个生命周期。
- The life cycle of mammals begins with birth and ends with death.
哺乳动物的生命周期从出生开始，到死亡结束。
2
生命周期, 寿命
the series of stages something goes through from the beginning to the end of its use or existence
- The life cycle of a building includes design, construction, use, and demolition.
建筑物的生命周期包括设计、施工、使用和拆除。
- This report covers the full life cycle of the product.
本报告涵盖了产品的完整生命周期。
- They studied the life cycle of the software to plan updates.
他们研究了软件的生命周期以计划更新。
- The company tracks the life cycle of each machine.
公司跟踪每台机器的生命周期。
- She explained the life cycle of packaging materials.
她解释了包装材料的生命周期。