| 释义 |
life·time AHD[līfʹtīm'] D.J.[ˈlaɪfˌtaɪm]K.K.[ˈlaɪfˌtaɪm]n.（名词）- The period of time during which an individual is alive.一生：一个人生存的一段时间
- The period of time during which property, an object, a process, or a phenomenon exists or functions.存在期，有效期：某种性质、物体、过程或现象存在或起作用的一段时间
n.attributive.（定语名词）- Often used to modify another noun:终生：经常用来修饰另一个名词：a lifetime guarantee; lifetime membership.终身保障；终身会员资格
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