它过于依赖几个假设，即廉价的石油以及农民有能力负担昂贵的杀虫剂以及化肥费的价格。
It relied too much on the assumption of cheap oil and on farmers' ability to afford expensive pesticides and chemical fertilizers.
城市温度过高，使得能耗的费用越来越昂贵，同时也加大了电力公司的负担。因此，发电厂不得不更多地燃烧煤炭，石油和天然气来产生电能，污染物也随之产生。
Hotter temperatures lead to higher energy bills and a larger draw on the utilities and greater production of pollution from coal, oil, and natural gas fired power plants.
我们对外国石油的依赖给我们的家庭造成了巨大的负担，使美国经济衰竭。
Our dependence on foreign oil strains family budgets and saps our economy.
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