States had at least three social levels, usually, an upperclass of rulers, a middleclass comprised of managers and merchants, and a lower class of crop producers and agricultural laborers.
国家中至少有三种社会阶层,上层阶级(执政),中产阶级(商人,管理者)和下层阶级(农民,工人)。
2
Children of educated and upper-middle-class parents turn out to be far more curious, even at early ages, than children of working-class and lower-class families.
比起工人阶级和下层家庭的孩子,受过教育的孩子以及中上层家庭的孩子甚至在很小的时候就更有好奇心。
3
In terms of class, digital divide exists among different types of workers and between the upper and middle classes and the lowerclass.