When our sources of fresh water get polluted, we can no longer use this water.
当我们的淡水来源被污染，我们就不能再使用这些水。
Many people get sick because they drink the polluted water.
很多人生病是因为他们喝被污染的水。
Many people get sick from drinking the polluted water.
许多人生病了，因为他们喝了污染的水。
When people breathe the polluted air or drink the polluted water, they may get iii.
当人们呼吸这些被污染了的空气、饮用这些污水时，他们或许会染上疾病。
When people breathe the polluted air or drink the polluted water, they may get iii.
当人们呼吸这些被污染了的空气、饮用这些污水时，他们或许会染上疾病。
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