The foul air in the cinema disgusts me.

电影院里污浊的空气让我讨厌。

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He opened the window to let out the foul air.

他打开窗户，放出污浊的空气。

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Consider coal with a superstitious eye, and foul air might seem a curse suffered for disinterring preancient life.

如果用一双迷信的眼睛去看待煤炭，燃烧时出现的黑烟似乎就是对挖掘前世生活的一种诅咒。

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All week in Beijing, in offices and homes, in lifts and shops, restaurants, taxis and buses, one topic has dominated conversation - Beijing's foul air.

BBC: 'Airmageddon': China smog raises modernisation doubts

It is doubtful whether Iran's leaders can achieve all their stated aims of maintaining petrol production, manufacturing lots of petrochemicals and cleaning the foul air their citizens must breathe.

ECONOMIST: Iran's struggle

On the outskirts of Shenzhen, over 3, 000 people blocked a highway and surrounded government offices after hundreds fall ill from foul air emitted from a sewage plant, according to Hong Kong's Oriental Daily News.

BBC: China media: Political models