最后周先生同意了，但为了安全起见他核实了女方的身份背景。
The Zhous agreed, but took the precaution of running a quick background check.
注意：请提供以下安全与背景信息。
NOTE: Provide the following security and background information.
资源安全是人类社会在对资源承载能力产生巨大压力的背景下提出的。
Resource security is brought forward under the great pressure of natural resource carrying capacity.
对化妆品安全性问题和历史背景进行概述。
The safety and the history background of cosmetics were related.
简要介绍了城市公共安全应急平台的建设背景；
The construction background of urban public safety emergency platform is introduced in this paper briefly.
在这一背景下，地下结构的安全性监测与预警变得越来越重要。
The design and development of the security monitoring system for grid structural coal-shed;
在这一背景下，地下结构的安全性监测与预警变得越来越重要。
The design and development of the security monitoring system for grid structural coal-shed;
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