lifetime不可数。lifetime是英文单词，主要用作名词，作名词时中文含义是：一生；终身；有生之年；(某物的)存在期；寿命；使用期限。lifetime的读音音标是[ˈlaɪftaɪm]。
一、lifetime双语例句
1.Short lifetime means uncertain mass.
短寿命意味着质量不确定。
2.They may influence people for years, and even for a lifetime.
它们可能影响人们多年,甚至一生。
3.Our lifetime is short, so we should make good use of it.
我们的生命是短暂的,所以我们应该好好利用它。
4.Our lifetime is short, so we should make good use of it.
我们的生命是短暂的,所以我们应该好好利用它。
5.His diary was not published during his lifetime.
他的日记在他生前未曾发表过。
6.The cruise was advertised as the 'journey of a lifetime'.
这次航行被宣传为“终生难得的旅行”。
7.Works of art are in trust to us during our lifetime.
艺术品交由我们托管一生。
8.I want to take advantage of your lifetime of scholarship.
我希望能够用到您一生的学识。
