求翻译：同学们会认为环境污染是最大的杀手是因为它每年造成七百多万人死亡，仅空气污染就造成近三百多万人死亡，百分之二十的人喝不上水是什么意思？

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Students will think that environmental pollution is one of the largest killers because it is more than 700 per year, only 10,000 people have died as a result nearly 300 air pollution more than 10,000 people were killed and 20 % of the people who do not drink water

Schoolmates can think the environmental pollution is the biggest murderer is because it creates more than 700 ten thousand dead every year, only the air pollution creates nearly more than 300 ten thousand dead, 20% people cannot drink water

Students may think that environmental pollution is the biggest killer is because it caused the death of more than 7 million people each year, causing air pollution alone killed more than 3 million people, 20% people drink water

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