皮尤中心设定的“中产阶级”门槛以2007年购买力平价币值计算，为自报年收入4,286元，这与世界银行所用的4,000-17,000美元的年收入范围一致。

The threshold it used for “middle-classness” was a self-reported income of $4,286 a year in 2007 PPP dollars, consistent with the range of $4,000-17,000 a year used by the World Bank.

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百花园餐厅鱼翅套餐每两位价格888元，不收服务费。每两位赠送一瓶加州圣皮尔古堡干红葡萄酒。

Spring garden restaurant shark's fin set menu: rmb 888nett per couple including one bottle of chateau saint pierre red wine for every couple.

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我花11.50加元买了半只脆皮鸭，深褐色的鸭皮闪闪发亮。

I paid 11.50 dollars for a half duck that was covered in crispy skin, glistening and deep brown.

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