The theory behind atomic transactions, rollbacks, and other critical database topics are very similar to the issues students study in operating systems.

原子事务、回滚和其它关键的数据库主题背后的理论非常类似于学生在操作系统中学习的问题。

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I've had email discussions with a number of readers who present on topics such as health and safety issues or environmental regulations.

我已经通过电子邮件和一些读者进行了讨论，他们曾经出席过与健康与安全或者环保有关的话题的演说现场。

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Lighten up: Certain topics, issues and events are serious but not everything is! Lighten up.

点睛：某些话题，观点和事情是很重要但却不是唯一。

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It also marks the first in a series of White House Hangouts that will cover a range of topics and issues.

WHITEHOUSE: The White House Blog: The President

In theory, it creates a way for advertisers to easily identify and address what really gets the community going, key trends and concerns and hot-button topics and issues.

FORBES: Microsoft showcases new social media tools at Cannes

Appinions meets this growing challenge with innovative and disruptive opinions-powered technology that identifies the topics, issues and brands attracting the most attention and the influencers talking about them.

FORBES: Mining Influentials