Pigeons and pollution are both common blights in cities around the world, but a group of engineers in London are hoping the birds can help them tackle problems with air quality.
对世界上许多城市来说，鸽子和污染问题都是常见的危害，但伦敦的一群工程师却希望能利用鸽子来帮助解决空气污染问题。
During the Second World War, when a young group of pilots in the RAF were fighting for their lives in the air over England, they would often be hit by enemy fire.
在第二次世界大战中，当英国皇家空军在英格兰上空为自己的生命二战的时候，他们经常会被敌军的火力攻击到。
A working group of the World Health Organisation has proposed a set of draft new WHO air quality guidelines.
世界衞生组织的工作小组建议了一套新空气质素指引。
Areeba Hamid, an air pollution campaigner with environmental group Greenpeace, said: "Toxic air causes havoc to people's health wherever in the world they live."
环境团体绿色和平组织的反空气污染活动家阿丽芭·哈米德说：“有毒空气给世界各地人们的健康造成严重损害。”
About Air Liquide Group Air Liquide is the world leader in gases for industry, health and the environment, and is present in over 75 countries with 43,000 employees.
关于液化空气集团液化空气集团是全球领先的工业、健康和环保气体供应商，业务遍及75个国家，员工43,000人。
Air Liquide Group Air Liquide is the world leader in gases for industry, health and the environment, and is present in over 75 countries with 43,000 employees.
液化空气集团液化空气集团是全球领先的工业、健康和环保气体供应商，业务遍及75个国家，员工43,000人。
Pigeons and pollution are both common blights1 in cities around the world, but a group of engineers in London are hoping the birds can help them tackle problems with air quality.
对世界上许多城市来说，鸽子和污染问题都是常见的危害，但伦敦的一群工程师却希望能利用鸽子来帮助解决空气污染问题。
Pigeons and pollution are both common blights1 in cities around the world, but a group of engineers in London are hoping the birds can help them tackle problems with air quality.
对世界上许多城市来说，鸽子和污染问题都是常见的危害，但伦敦的一群工程师却希望能利用鸽子来帮助解决空气污染问题。
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