These are now large strips of the country where daycare for an infant costs more than a tenth of the average married couple's income.

现在在美国的大部分地区，一个婴儿的日托费用超过已婚夫妻平均收入的十分之一。

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Small enough to fit in the bed of a large pickup truck, the Ferrator strips electrons from iron atoms to make ferrate--an unstable molecule that bonds to and neutralizes heavy metals, phosphates and bacteria.

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