Lower Second Class二等二级;二等二
Lower social class工人阶级
lower-class culture底层文化
the lower-class下层民众
lower-class平民阶层
lower r class limit组下限
lower middle class中产阶级;中下阶级;中产阶级的下层;阶层
lower working class下层工人阶级
lower age class低龄级
N-COUNT-COLL（集体可数名词） Some people use the lower class or the lower classes to refer to the division of society that they consider to have the lowest social status. 下层社会 [usu pl]
Education now offers the lower classes access to job opportunities.
现在的教育为下层社会提供了工作机会。
ADJ（形容词） Lower class is also an adjective. 下层社会的
...lower-class families.
...下层社会的家庭。