环境污染

Well, no one could survive without water. But you see pollution has been making more and more water unable for drinking.

嗯，没人能离开水而存活下去。但是你看，水污染越来越严重，使水都无法饮用。

Yeah. Water pollution has for a long time been a major concern among the environmental issues.

是的。水污染长时间以来都是一个主要的环境问题。

But what are the sources of water pollution?

但是水污染的污染源是什么？

They could generally be divided into two categories: direct and indirect contaminantsources.

它们通常可以分成两类：直接污染源和间接污染源。

Well, direct ones are pollution directly from factories, refineries, waste treatment plants etc, aren't they?

额，直接污染源是那些从工厂、精炼厂、污水处理厂排放出来的污染，是吗？

Yeah. They are emitted directly into urban water supplies.

是的。它们直接排放到城市供水系统中。

But what about the indirect ones?

但是间接污染源是什么呢？

Indirect sources include contaminants that enter the water supply from soils or groundwater systems and from the atmosphere via rainwater.

间接污染源包括来进入给水系统的污染物，这些污染物自泥土和地下水系统以及大气、雨水。

I see. For the sake of us all, we should be an active participator in the prevention of it.

我明白了。为了我们所有人好，我们应该积极参与水资源的保护。

Sure. It’s an issue asking for everyone's participation.

是的。这是一个需要人人参与的问题。