They found that in unventilated spaces levels can build up and, over time, cause health problems such as allergies and asthma.
研究表明,在不透风空间里,时间长了,会影响健康,出现过敏、哮喘
。
They found that in unventilated spaces levels can build up and, over time, cause health problems such as allergies and asthma.
研究表明,在不透风空间里,时间长了,会影响健康,出现过敏、哮喘
。
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