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The Public School system is often seen to be the sacred cow of the upper classes.
公学制常常被看作是上层阶级神圣不可侵犯的事物.
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It is solely by their language that the upper classes nowadays are distinguished.
只有他们才会说当今的上流阶级非常杰出.
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They defined simply by a dichotomous division within the upper, middle, and lower classes.
他们简单地用一种两分法划为上 、 中 、 下等阶级.
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