60% of air pollution is from waste gases of vehicles and in

问题描述:

60% of air pollution is from waste gases of vehicles and in cities uo to 80%翻译
1个回答 分类:英语 2014-09-17

问题解答:

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60%的空气污染是由汽车尾气排放造成的,而城市里有80%的空气污染是由汽车尾气排放造成的.
 
 
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