在许多临海的国家，人类的废弃物未经处理就直接排入大海。
In many countries with sea coasts, human waste is piped directly into the sea without being treated.
从厕所中收集的未经处理的人类排泄物经常被送到农场并作为肥料播撒。
Frequently untreated human waste harvested from lavatories is delivered to farms and spread as fertilizer.
在贫穷、干旱的地区，未经处理的废水是让农民维持生计的唯一可用灌溉资源。
In poor, dry regions, untreated wastewater is the only viable irrigation source to keep farmers in business.
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