离开你的日常路径：到别层去上厕所或者复印文件，当然是爬楼梯。

And go out of your way: Hit a bathroom or a copier on another floor — and take the stairs, of course. Burns 100.

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废水流过系统之后就会被处理干净，出来的水可以用来冲洗厕所、浇灌庭院、花园和庄稼。实际上，它甚至干净到可以很容易地被制成饮用水。

When the water emerges, it is clean enough to be used for flushing toilets and watering yards, gardens and crops. in fact, it's cleaner even than that and could easily be made drinkable.

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一个小孩从出生到学会上厕所，其父母要为TA换5000到8000次尿布。每年美国的垃圾堆要因此增加大约350万吨。

By the time a child is toilet trained, a parent will change between 5, 000 and 8, 000 diapers, adding up to approximately 3.5 million tons of waste in U.S. landfills each year.

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