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A cold draught of air blew in from the open window.

一股寒气从敞开的窗户吹了进来。

《牛津词典》

Keep a downwind window open slightly for fresh air.

保持顺风窗略微打开以获得新鲜空气。

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Inside the car, they should open a window a little for fresh air and turn on the engine for ten or fifteen minutes every hour for heat.

VOA: special.2010.01.05

There's an upside to all this: As you know, the name New York City is Dutch for "No Central Air, " and that makes window air conditioners the great leveler.

WSJ: Ugliness for All

As this was long before window air conditioners bested the noises of a neighborhood's tropical nights, the broadcast blanketed the block from Keer to Chancellor a block on which not a single Republican lived in any of the thirtyodd two-and-a-half-family houses or in the small new apartment building at the Chancellor Avenue corner.

NPR: Roth Rewrites History with a 'Plot Against America'

Its new optical technology beams data straight through the air, from one window to another.

CNN: Terabeam aims to solve 'last mile' data jam