名词
中文翻译：通风
同义词：
['air circulation', 'ventilation', 'air exchange', 'oxygen supply', 'fresh air']
例句：
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1.The hospital needs to improve its ventilation system to reduce the risk of infection.
医院需要改进其通风系统以减少感染风险。
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2. The room was poorly ventilated, making it difficult for us to breathe.
房间通风不良，让我们很难呼吸。
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3.The construction site had poor ventilation, causing a lot of dust and pollution.
施工现场通风不良，导致大量灰尘和污染。