If information can go stale over time, add a time stamp to avoid using old data.

如果信息会随着时间的推移过时，那么添加时间戳以避免使用陈旧数据。

youdao

The downside is that it's log structured, and garbage collection is needed to clean up old data and metadata.

而缺点在于，它是日志结构的，所以需要垃圾收集，以便清理旧的数据和元数据。

youdao

If your EBS volume fails or if you need to restore old data from EBS, you will need to restore from your last snapshot.

如果您的ebs卷发生故障或者要从ebs恢复旧数据，就需要从最近的快照中恢复。

youdao

This is Defense Secretary Robert Gates, "These documents represent a mountain of raw data and individual impressions, most several years old, devoid of context or analysis."

VOA: standard.2010.07.30

This is old data now, from 1995, but I don't think it's changed very much.

这是个很久的数据了,来自一九九五年,但我不认为这会有多大改变

耶鲁公开课 - 生物医学工程探索课程节选

Now these ideas of classes, object-oriented programming, data abstraction, are about 40 years old, they're not new ideas.

面向对象编程的概念，数据抽象的概念，都是40年前就有的老东西了。

麻省理工公开课 - 计算机科学及编程导论课程节选

The Department of Health said the Journal of Epidemiology and Community Health study was based on old data.

BBC: NEWS | Health | Free school fruit 'little impact'

The scientists tested it using old data for Botswana dating from 1982 to 2002 and found a huge improvement.

ECONOMIST: A new way of predicting a malaria epidemic months in advance

Ten-year-old data protocols did not require keeping every scrap of data and calculation.

ECONOMIST: Leaked e-mails do not show climate scientists at their best