名词 underclass:

1. the social class lowest in the social hierarchy

形容词 underclass:

1. belonging to the lowest and least privileged social stratum

underprep.低于；在 ... 下；在 ... 内；在 ... 控制下adv.在昏迷中；在 ... 下adj.下面的；从属的；少于的underpayvt.少付 ... 工资； 付给 ... 不足额的工资

1. Is thought be a car belonging to the lower class in the U.S.
   在美国会被看成是属于下层阶级的。
2. The upperclassman and his underclass mothers learned together in cooking class.
   高年级的学生和他的下层阶级的母亲一起在烹饪课上学习。