The level of pollution in the river was falling.
该河流受污染的程度其时正在降低。
Old buses are major contributors to pollution in cities.
旧公交车是造成城市污染的主要原因。
I can't bear the air pollution in this city anymore.
我再也不能忍受这个城市的空气污染问题了。
Fewer cars will mean less noise and pollution in the town.
汽车的减少将意味着城镇的噪音和污染的减少。
How to control pollution in China?
怎么控制中国的污染问题？
Is there any pollution in your city?
你的城市有污染吗？
Is there more air pollution in the city?
这个城市有更多的空气污染吗？
Pollution in the city remains a problem.
这个城市的污染依然是个问题。
Is there a lot of pollution in the world?
世界上有很多的污染吗？
There will be less pollution in the future.
将来会有更少的污染。
There is a lot of pollution in the air here.
这里的空气有大量的污染物质。
There's a lot of pollution in the air here .
这里的空气有大量的污染物质。
There isn't a lot of pollution in the world.
世界上的污染不是很多。
We must abate the noise pollution in our city.
我们必须消除我们城里的噪音污染。
What's the most serious pollution in your city?
你的城市最严重的污染是什么？
Can you give some examples of pollution in China?
你能举出一些有关中国污染的例子吗？
What's the main reason for water pollution in this area?
这个地区水污染的主要原因是什么？
I can't bear the air pollution in the city anymore.
我忍受不了这个城市的污染了。
There is less pollution in the country than in the city.
乡下的污染要比城里少得多。
There will be more trees and less pollution in this city.
这座城市将会更多的树木，有更少的污染。
Something must be done to stop the pollution in our city.
必须要采取措施来阻止我们城市的污染。
I must admit that I was wrong about all that pollution in China.
在中国污染还不是我想的那么厉害。
Their chief aim is to reduce the amount of pollution in the area.
他们的主要目标是减少该区域的污染量。
This is because the water pollution in our country is very serious.
这是因为我们国家的水污染很严重。
There is less air pollution in Sunshine Town than in Moonlight Town.
阳光镇的污染比月光镇的污染要少。
There is less air pollution in Sunshine Town than in Moonlight Town.
阳光镇的污染比月光镇的污染要少。
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