n. 预期生命期限；寿命；预期使用期限
n the period during which something is functional (as between birth and death)
1. So technically, it's only halfway through its lifespan.
它离最终使用期限还有一半的时间
2. Perhaps even the lifespan of civilisation itself.
或许甚至比人类文明的年限更久
3. I've been working on an enzyme to increase the lifespan.
我在研究一种延长寿命的酶
4. Six ages define the lifespan of an empire.
帝国的生命週期划分为六个时代
5. What the hell. I don't got that long a lifespan, anyway.
随你们吧 反正本来我也活不长
6. be able to extend their lifespan by considerable amounts.
通过大数据人们可以延长寿命
7. And our lifespan will be reduced to 45 years.
而我们的寿命将减至45岁
8. Guessing that snowflake had a longer lifespan than their engagement.
看来连那片雪花 存活得都比他们的订婚长
9. Our average lifespan is 78 in developed nations.
发达国家的平均寿命是78岁
10. When we finally got to the end of the experiment, there was no difference in the lifespan at all.
当我们最终完成实验时 没有发现任何寿命长短的区别
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