Northwest Airlines Cargo, which is no longer operating, conspired to fix air-cargo rates from July 2004 to February 2006, the department added.

司法部补充说在2004年7月至2006年2月间西北空货（Northwest Airlines Cargo，现在不再运作）策划了空货限阶。

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When all the locals are combining grain here in northwest Missouri, there is so much dust in the air that it makes for beautiful sunsets.

在密苏里州的西北地区，当那里的人们将粮食汇聚在一起的时候，空气中飘扬的尘埃使得这里的黄昏分外美丽。

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Air pollution in Beijing reached a high level of 99 on the Air pollution Index on Friday as a sandstorm from the northwest shrouded the capital in dust, the China News Service reported.

据中国新闻社报道，北京市区13日遭遇了来自西北方的沙尘袭击，当天该市污染指数一度达到99。

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Many airlines routinely hedge themselves to a degree against rising fuel costs: Southwest Airlines, Northwest Airlines and Delta Air Lines are all reported to have reasonable protection from rising prices, at least for now.

ECONOMIST: America's airlines and the war

Delta Air Lines and Northwest Airlines have yet to exit from Chapter 11.

FORBES: Magazine Article

The first of these giant carriers was created in 2008 when Delta Air Lines bought Northwest, creating what was then the world's largest airline.

WSJ: Little overlap in American, US Airways routes