很多种说法啊，你参考下吧
Appeals on behalf of the disadvantaged
为社会底层的人所作的呼吁
In the capitalist countries the laboring people live at the foot of the social ladder.
在资本主义国家里，劳动人民生活于社会的底层。
the lowest class of citizens of ancient Rome who had no property.
古罗马社会最底层没有财产的公民的。
