Still, some schools have re-evaluated their safety needs in response to the concerns of families and communities.

作为对家庭和社区安全担忧的回应，一些学校还是重新评估了他们的安全需求。

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System safety programs (SSPs) seek to integrate the process of identifying safety needs and managing them over time.

系统安全工程的目标是要把发现和管理安全需求的过程有机结合。

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Many people are too busy scrambling for those first two needs – food and safety – to worry about the rest.

很多人忙于满足前两种需求——食品和安全——而无暇顾及其它。

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To be sure, the safety of vaccines needs to be monitored and assessed continually.

ECONOMIST: How to assess scary stories about vaccines

An angry China can veer into xenophobia, but not all the nationalist left's causes are so dangerous: one is for the better public services and social-safety net the country sorely needs.

ECONOMIST: And how the world should see China

Today we have an opportunity to solve the problem by having Congress reallocate the spectrum that Public Safety needs for broadband.

FORBES: 9/11 Safety Update: Why First Responder Communications Hasn't Improved In 10 Years