The paper is basing on the Nashi Equilibrium and Pareto theory to analyze the model of community security.

本文基于纳什均衡和帕累托理论，对城镇社区安全管理模式进行了经济学分析。

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These volunteers now play important roles in maintaining community security, guiding residents on garbage classification and meditating deputes.

目前，在社会安全维护方面，这些志愿者扮演着重要的角色，指导居民进行垃圾分类，调解争议。

youdao

There are two main bodies for constructing the system of community security service:one is the community's own security service force, the other is the outside social force.

社区安全服务社会化体系的两大构成主体是社区自身的安全服务力量和外来为社区安全服务的社会力量；

youdao

"What is necessary in this case is a collective effort, not only by the researchers and the people on the ground, but also the donor community, because controlling those two diseases can go a long way in improving people's food security and livelihoods in Sub-Saharan Africa."

VOA: special.2009.09.21

Of course, if think about it, as a community, the investment community is going to lose from security selection decisions.

其实很好理解,想想看,投资者群体可能,由于证券选择决策失误而蒙受损失

耶鲁公开课 - 金融市场课程节选

So, it's not surprising that asset allocation explains more than 100% of returns and that, for the community as a whole, market timing and security selection are costly and lower the community's aggregate investment returns.

因此资产配置能解释100%以上的回报,也不足为奇了,对投资者整体来说,市场时机选择,和证券选择是有代价的,降低了总的投资回报

耶鲁公开课 - 金融市场课程节选

The base commander said it would give the people who served there and the local community security and stability.

BBC: Downham Market residents salute RAF Marham Tornado crews

Community security is handled by the Community Security Organization.

CENTERFORSECURITYPOLICY: Out of South Africa

At the meeting with Mr Ivens were members of the Board of Deputies of British Jews, the Britain Israel Communications and Research Centre, the Community Security Trust and the Jewish Leadership Council.

BBC: Sunday Times acting editor apologises for cartoon