n.下层社会；下层阶级；贫困阶层
They are the underclass and thus usually left out of the picture. 他们属于最下层，一般就都被人们所忽略了。
Some blame Britain's unequal society and the large underclass that it creates. 有人将这一结果归罪于英国社会的不平等和由此造成的大量下层阶级人口。
The long-term unemployed are becoming a new underclass. 长期失业的人正形成新的贫困阶层。
