hard_to_prevent_有道手机词典

1.Our country is trying hard to prevent and control air pollution.
我们的国家正努力预防和控制空气污染。
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2.This indicates that if there is arbitrage opportunity in the commodity sector, it is hard to prevent.
这表明，如果商品领域中存在套戥机会，几乎很难防止有人不这样做。
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3.Even though the drugs have been developed to treat disease, it will be hard to prevent their use by the healthy.
尽管这些药物是用于治疗疾病，但很难阻止健康的人们去使用它们。
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