广播电视英语短句 第 189 课：私人厕所-2

A natural reaction kills harmful organisms in the waste. 这种自然反应可以杀死排泄物中的有害生物。

It reduces the waste to fertilizer that Anders Wilhelmson says -- it's safe for growing food. Anders Wilhelmson 说， 此举减少了肥料的浪废 ， 并对种植食物很安全。

The hotter the weather, the more quickly the waste breaks down into ammonia to be taken up by plants. 天气越热 ， 废物越化成被植物吸收的 氨水的速度也就越快 了 。

Anders Wilhelmson says, the sanitation process can take as little as a couple of hours, or as long as two to four weeks. Anders Wilhelmson 说 ， 卫生处理流程短则几个小时 ， 长则 2-4 周。

He is an architect and professor at Sweden 's Loyal Institute of Technology. 他是瑞典皇家技术学院的的建筑师和教授。