The foul air in the cinema disgusts me.

电影院里污浊的空气让我讨厌。

youdao

He opened the window to let out the foul air.

他打开窗户，放出污浊的空气。

youdao

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。

youdao

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

More economic development would produce the money to help clean the now foul water and air, but also provide access to better education, one of the best ways to assure more manageable birth rates.

FORBES: The Green Movement's People Problem

Mr. Kurlantzick theorizes about what happened without coming to a firm conclusion, though the CIA is criticized for not releasing the results of the investigation it apparently conducted, and a hint of foul play is left hanging in the air.

WSJ: Book Review: The Ideal Man