The social consequences of this state of affairs were ominous: children of the poor die at three times the rate of children of the middle classes.

这种事态的社会后果是使人不安的：穷人儿童的死亡率，为中等阶级儿童死亡率的三倍。

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This blending merges the visitor's awareness of the architecture, the exhibitions, the different people and social classes into a contiguous, flowing experience.

这种混合式的建筑，融合并改变了游客对建筑、对展览、对不同的人和社会阶层的认知，形成一个连续的，流动的体验。

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This assertion is wrong because it doesn't exist an economic growth above the social classes.

这个论断不成立，因为经济增长不可能脱离社会阶层。

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The models cover in this class provide a foundation for future social science classes, whether they be in economics, political science, business, or sociology.

FORBES: Learn How Model Thinking Can Make You a Better Thinker

Clothes produced by this method have been popular among people of various social classes for centuries.

UNESCO: Culture