The family is a social unit.

家庭是社会的组成单位。

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The family is the smallest social unit.

家庭是社会最小的单位。

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The extended family is the basic social unit, headed by its eldest male member.

扩大家庭是最基本的社会单位，由最老的男性成员管理。

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In a world where the largest social unit is the tribe, clan or what-you-will of a few hundred people, your neighbours and your other allies will normally look a lot like you, and act similarly.

ECONOMIST: Darwinism

But as the government says, the Social Exclusion Unit is not just about fighting social ills, it is also about creating better services for the individual and the community as a whole.

BBC: News | UK | The long battle against social exclusion

Rita McNamara, what marks would you give the social exclusion unit out of ten, so far?

BBC: News Online