| 释义 |
life cycleBrE /ˈlaɪf saɪkl/ NAmE /ˈlaɪf saɪkl/ noun (biology生物) the series of forms into which a living thing changes as it develops 生命周期，生活周期（生物发展过程的系列变形）◆ the life cycle of the butterfly 蝴蝶的生命周期the period of time during which sth , for example a product , is developed and used 生命周期，寿命（产品等从开发到使用完毕的一段时间） |