现代灌溉方法的优点之一是，仅凭它们就可以节省目前灌溉用水浪费量的20%-30%。

One of the advantages of modern irrigation methods is that they alone can save 20-30 percent of the present volume of wasted irrigation water.

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另外，假定“伪美国”以石油作为电力来源，以原油桶为单位计算浪费量。

Assume that the Pseudo US supplies electricity from oil. Interpret your results in terms of barrels of oil.

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就在美国民众今天享用火鸡和各样配菜时，一项新的研究发现自1947年以来他们的人均粮食浪费量已经上升到50%。

While many Americans feast on turkey and all the fixings today, a new study finds food waste per person has shot up 50 percent since 1974.

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fancy restaurant Right, because you waste your money if you're buying these little portions of healthy food.

宰人的高档餐厅,很好,因为一旦你购买了这些量很少的,健康食品你就是在浪费金钱

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选