The social stratum structure is the core factor among all kinds of social structures.

社会阶层结构是社会的核心结构。

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The social stratum interest's differentiation has increased our country citizen interest express dynamics and the intensity.

阶层利益的分化加大了我国公民利益表达的力度和强度。

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But the key point of the procedure depends on the issue, "whether or not can the higher education enrollment expansion reduce the social stratum closure."

但是这一命题的关键之处，或者这一命题的基石就在于高校扩招能否降低阶层间的封闭性。

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Society being composed of social strata a family will find its children in competition with children from families in roughly the same social-economic stratum, with roughly the same total amount of family income to invest in children.

FORBES: Demographic Decline and Investment Intensity in Children -- Observations on China and Japan

If my children were in public school, they would spend their days in rooms with children all within a year of their own age, all from the same neighborhood and social stratum.

FORBES: Leadership Takes Many Forms - Like A 13-Year-Old Lecturer In A Ski Cap