Definition: a group of people within society who have the same economic and social position Level: B2
许多传统产业雇佣了工人阶级。
Many traditional industries employed the working ___class.
他们渴望中产阶级的生活方式，并送孩子上大学。
They aspired to a middle ___class lifestyle and sent their children to university.
历史上，土地所有权集中在上层阶级手中。
Historically, land ownership was concentrated in the hands of the upper ___class.
