对比不同国家的生活标准时，采用购买力换算货币比采用市场汇率显得更有意义。

Converting currencies by purchasing power, rather than market rates, is useful when comparing living standards in different countries.

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而这个区域在人脑中所占的比率，女性要比男性多（总体而言，男性大脑比女性大10%，所以凡与大脑区域相关的比较，都按其在各自大脑所占的比率换算）。

Men’s brains are about 10 percent larger than women’s, overall, so any comparison of specific brain regions must be scaled in proportion to this difference.

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12种类型的郡中的7个在2010年的中产阶层的收入在换算通货膨胀以后比30年前的要低。

Seven of the 12 county types actually had a lower median family income in 2010 than they did 30 years before in inflation-adjusted dollars.

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