草根阶层怎么翻译

the lower estate
the common estate
the commons

estate 的意思是社会阶层：

社会阶层：主要的社会阶层，例如贵族阶层、平民阶层、牧师阶层，具有不寻常的政治权力
A major social class, such as the nobility, the commons, or the clergy, formerly possessing distinct political rights.

Grassroots/Grassroots level

Lower level

grass roots class/rank