美国农业部(usda)的营养政策与宣传中心(Center for Nutrition Policy and Promotion)发布的这份报告说，住房是家庭最大支出，其次是食品和孩子的抚养及教育费用。

The report, by the USDA's Center for Nutrition Policy and Promotion, said that housing was a family's single largest expense, followed by food and the costs of child care and education.

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美国农业部的营养政策与宣传中心发布的这份报告说，住房是家庭最大支出，其次是食品和孩子的抚养及教育费用。

Thee report, by the USDA's Center for Nutrition Policy and Promotion, said that housing was a family's single largest expense, followed by food and the costs of child care and education.

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根据美国国家健康与营养调查中心收集来的数据，睡眠不足7小时的人有很大几率比睡眠充足的人更容易变得肥胖。

People who sleep less than 7 hours a night tend to have a higher body mass index than people who sleep more, according to data gathered by the US National Health and Nutrition Examination Survey.

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