名词
中文翻译：空气
同义词：
['space', 'atmosphere', 'breath例句：1. The air is getting colder and the sky is turning gray.（天气越来越冷，天空变灰了。）']
例句：
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1. The air is getting colder and the sky is turning gray.
天气越来越冷，天空变灰了。
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2.Air travel is much faster than driving.
航空旅行比开车快多了。
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3. We need to keep the windows open to get fresh air in.
我们需要打开窗户换换新鲜空气。