For a while now, U. S. nutrition standards have been based off different versions of the food pyramid.

很长一段时间，美国营养标准是基于不同版本的食物金字塔。

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But, there's a better alternative: the Healthy Eating Pyramid, built by the faculty in the Department of Nutrition at the Harvard School of Public Health.

但是，还有更好的选择：就是由哈佛公共卫生学院营养系建立的健康饮食金字塔。

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