英语听力：自然百科 圣河之旅 The Ganges 恒河—21

 We stopped at the waste water pumping station by the side of the road. So this is some so called treated water. A study by an Indian institute of technology found it even after supposedly being treated, the waste water from the tannery still contains dangerously high level of poisonous chemicals, such as arsenic¹ and mercury. Apparently², the water here comes from the pipe over there and it flows in these channels and then is used for irrigation, providing water for crops in the dry season, but in the wet season, it flows from here straight into the river Ganges. On the river bank on the outskirts³ of the city, I met environmental campaigner Rack. Rack, thanks for meeting with us. Can you tell us what is the state, the health of river Ganges at this point.

1 arsenic   

n.砒霜，砷；adj.砷的

参考例句：

• His wife poisoned him with arsenic.他的妻子用砒霜把他毒死了。
• Arsenic is a poison.砒霜是毒药。

2 apparently   

adv.显然地；表面上，似乎

参考例句：

• An apparently blind alley leads suddenly into an open space.山穷水尽，豁然开朗。
• He was apparently much surprised at the news.他对那个消息显然感到十分惊异。

3 outskirts   

n.郊外，郊区

参考例句：

• Our car broke down on the outskirts of the city.我们的汽车在市郊出了故障。
• They mostly live on the outskirts of a town.他们大多住在近郊。