个人而言，我认为烟草的生产和消费弊大于利。
Personally, I believe that cigarette production and consumption threatens to do more harm than good.
新的法律给美国的食品和药品的生产，烟草的生产市场带来很大的限制。
The new law gives the US Food and Drug Administration the power to strictly limit the manufacturing and marketing of tobacco products.
烟草是中国一种重要的经济作物，而氮是植物必需的矿质养分，研究烟草碳氮代谢规律，对指导烟草的生产具有重要的作用。
Tobacco is an important economic crop, and nitrogen is essential mineral element. Studies on carbon and nitrogenous metabolism of tobacco have important action on tobacco production.
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