Reduce the volume of paper coming in by sorting mail over the recycling bin or trash, keeping only those papers that require an action or filing.

减少流入文件的数量，利用垃圾桶来分类邮件，仅仅保留那些需要处理或归档的文件。

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Reduce the volume of trash you have to pack out and save weight by repackaging solid food into plastic bags and liquids into reusable containers.

为了减少你必须打包带走的垃圾的数量和重量，可以通过把固体食物重新包装放在塑料袋中，将液体灌入可重复利用的容器中。

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This method can reduce the amount of garbage your group must pack out at the end of the trip and eliminate the undesirable need of stashing or burying unwanted trash.

这种方法能减少你的队伍在旅途结束时必须带回的垃圾数量，并减少不必要的隐藏或掩埋不需要的垃圾。

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Of course, the best way to reduce trash is to waste less in the first place.

WSJ: Grappling With a Garbage Glut

Conservancy officials said they want to reduce the amount of trash hauled from the park to landfills.

WSJ: Trash Talk in New York City's Central Park

We need to reduce our waste -- plastic trash and the like.

CNN: 'The Science Guy' says: 'Save the Earth'