And if we lived those extra years still struggling with the frailty that can make a long life less desirable, what would we have gained?
而如果那些时候我们依然在虚弱中苟延残喘，那么漫长的生命就变得不那么值得人们向往，我们到底得到了什么？
I got one with a long battery life, and picked up an extra external battery to boot, on the recommendation of one of my readers.
我买了一台电池寿命很长的，还买了一个备用电池，这是一位读者的建议。
Old biographers have got something extra: they've lived a long life themselves. They're more able to see things in perspective.
随着传记作家生活经验的积累，看事物的角度也会不同。
It has an extra stable performance and long service life because of its water-proof and airproof properties.
由于它不透水不透气，性能特别稳定、使用寿命长。
The extra-high pressure working cylinder has high strength, strong bearing ability, high safety, long service life and low use cost.
本实用新 型强度高，承压能力强，安全性高，使用寿命长，使用成本低。
The extra-high pressure working cylinder has high strength, strong bearing ability, high safety, long service life and low use cost.
本实用新 型强度高，承压能力强，安全性高，使用寿命长，使用成本低。
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