阶级分化的英文：
1.class polarization; class differentiation
n. 班级；阶级；种类
v. 分类；把…分等级
adj. 很好的
It is a step class.
这是踏板操训练班。
The class dismissed.
下课了。
The class teacher sectioned the class for dialogues.
老师把班级分组进行对话练习。
n. 极化；偏振；两极分化
The alkanes are non-polar.
烷是非极性的。
Love and hatred are polar feelings.
爱与恨是完全相反的感情。
There is a ideological polarity between nations.
国家间意识形态存在截然对立。
n. 区别,分化,变异
A wage differential.
工资差额。
That would upset the wage differential.
这样做会打乱工资级别制度。
The products of the various firms are differentiated.
不同厂商销售的产品有差别。