作为一项预防措施，我们被告知要打开窗户让新鲜空气进来，而不要使用空调。
As a preventative measure, we are told to let in fresh air by opening the windows and not to use the air conditioners.
让我们打开窗户，让新鲜空气进来。
打开窗户，让新鲜空气进来，房间里烟太多了。
Open the window and have some fresh air in, too much smoke in the room.
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