雨水进入到地下水系统，增加了我们饮用水的酸度，这可能危害我们所有人的健康。
Rainwater enters the groundwater system and increases the acidity of our drinking water, which can be a health hazard for us all.
雨水进入到地下水系统，增加了我们饮用水的酸度，这可能危害我们所有人的健康。
Rainwater enters the groundwater system and increases the acidity of our drinking water, which can be a health hazard for us all.
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