只用一本书提高英语听力能力!重温经典名著双语阅读小编推荐:跟着纪录片学英语不背单词和语法,轻松学英语
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[VOA标准] VOA标准精精听2019-01-10

提高英语听力能力 找对方法很重要!
Homework
There are three things we really are trying to do with the urine. And this kind of next phase, we\'re trying to concentrate it.       We are trying to apply technologies to reduce oder.and we are trying to deal with the trace contaminants like pharmaceuticals.             Dealing with pharmaceuticals is an important issue. Heating up urine kills germs, but has no effect on chemicals like drugs that pass through our bodies. We know pharmaceuticals are a problem for aquatic organisms and water systems. It\'s debatable about the impact on human health at very very low levels. Independent of that, I think most people would prefer that they not be in there. They\'re food.
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