在过去十年里，北京的城市化和中产阶层化进程加快。

In the last decade, urbanization and gentrification have accelerated in Beijing.

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然而，随着中国的经济繁荣和社会更加阶层化，这些猜疑都过去了。

However, as China's economy boomed and society became more stratified, these suspicions were overcome.

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社会阶层化，当社会阶级被严格的定义以及执行而且社会流动根本不存在(参照种姓制度)。

Social stratification, where social class is strictly defined and enforced, and social mobility is non - existent (see caste system).

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