名词
中文翻译：开放的空气
同义词：
['outdoors', 'outdoors例句：1. We spent the entire day in the open air.（我们整天都在户外。）']
例句：
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1. We spent the entire day in the open air.
我们整天都在户外。
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2.The farmer enjoys working in the open air.
这位农民喜欢在户外工作。
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3. The children played in the open air during the summer holiday.
孩子们在暑假期间在户外玩耍。