The social strata have changed from two social strata (worker and peasantry) into ten social strata in present China.

我国现阶段的社会阶层已经由传统的工农两大阶层分化为十大阶层。

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The social strata by upward mobility revealed by functionalist, suggests a possible migrant workers into the city labor ability and freedom of choice.

功能主义所揭示的社会阶层向上流动，暗示了农民工入城劳动的可行能力以及自由选择权的问题。

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The article mainly discusses the import of the western modern geology to China, which greatly influenced the social strata of the late Qing Dynasty suffering national crisis.

近代西方地质学输入中国，极大地影响了民族危机下的晚清社会各阶层。

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It seemed to be the regime that divided France least, what Gambetta called the nouvelles couches,or the new social strata, the new social strata,the middle classes,the petty bourgeois.

这看似是最不会导致法国分裂的政体,甘必大称它为新阶层,或新的社会阶层,中产阶级,小资产阶级

耶鲁公开课 - 1871年后的法国课程节选

They found on average a 19% difference between the highest and lowest social strata in the risk of dying in each country and about half of the difference was due to the risk of being killed by smoking.

BBC: NEWS | Health | Smoking 'accounts for health gap'

The ranks of homeschoolers are rising rapidly across every social strata, faith and ethnicity.

FORBES: Want To Tell The State To Stick It? Homeschool Your Kids

It requires the selfless cooperation of many people from all age groups, social strata and backgrounds, promoting and encouraging teamwork and contributing to local harmony and conviviality.

UNESCO: MEDIA SERVICES