新托福考试常考的高频词汇 ... 在某人的自然状态下In someone's natural state 净化污染的空气 purify(pure) the air pollution 导致不正常的气候 lead to abnormal climate ...
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人工照明系统阻碍了空气污染物与水分子的结合，起到了净化空气的作用。
Artificial lights block formation of molecules that bond with air pollutants to clear the air.
同样地，在很多地方，对炭黑的处理可以采取现行的净化空气的法规，此法亦适用于其他造成气候变化的污染物。
Similarly, black carbon can in many places be managed under existing clean-air regulations, as can some other climate-changing pollutants.
几十年世界上用类似硫酸盐的物质来减少空气污染、净化全球空气早有立法，而当前寻找一条下坡路来走完全没有意义。
Reducing pollution by things like sulphates has been the goal of clear-air legislation around the world for decades, and finding a downside now would not be helpful.
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