正因为如此，在英语中，用来表示社会中层的概念除了middle class之外，还有一些非阶级（non-class）的概念，如middling sort、middling ranks、middle station、middle orders、middle ranks。
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阶级矛盾与非阶级矛盾 class contradiction and non-class contradiction
非劳动阶级 nonworking class ; class of nonlaborers
非教士阶级 temporalty
但在若干戏曲影片中，帝王形象的非阶级面貌还是所保留。
But in some traditional opera films, the non-class dimension of emperor was remained.
削减开支大部分被转嫁给非富人；而且，在这次危机之前中产阶级的收入便已经停滞不前了，而富人则在全球化的过程中越来越富有。
Spending cuts fall disproportionately on the less well-off; and, even before the crunch, median incomes were stagnating. Meanwhile, globalisation has been rewarding winners ever more generously.
当学者们研究婚姻时，他们常常把研究重心放在白人身上，然而当研究到非裔美国人时，他们又常常只研究社会较底层的阶级。
When scholars study marriage, they usually focus on white people, yet when they focus on African Americans, they usually study the lower classes.
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