求翻译：特别说明一下，在当代西方社会，所谓”底层阶级”包括这样儿种人。一是那些非常贫困的人，他们大多数人或者是退休并完全依赖国家补贴，或者是无就业考的有小孩的家庭，这些家庭大多是单亲家庭，其中义以单身母亲居多。二是严重贫困者，但其首要特征是长时间失业，或者是长期失业或者是反复失业。是什么意思？

Special note, in contemporary Western society, the so-called "underclass" include children people. First, those very poor people, most of them, or retire and totally dependent on state subsidies or employment test for families with children, these families are single parent families, where justice,

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