They found that in unventilated spaces levels can build up and, over time, cause health problems such as allergies and asthma.
研究表，透风的空间里，时间了，会影响健康，出现、喘等症状。
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The unventilated, deafening carpet workshops where labourers were sometimes chained to the looms and locked in at night.
在通风不良、震耳欲聋的地毯车间，工们有时锁在织布机上，晚上锁在里面。
If you're going to build a building or retrofit a building, you need to guarantee that people are not going to be at high risk of inhaling some dangerous disease just because you have unventilated air indoors.
如果你要建造或改造一栋建筑，你需要保证们不会因为气不流通而处于吸入某种危险疾病的高风险中。
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划词翻译
详细解释
，
透风的空间里，时间
了，会影响健康，出现
、
喘等症状。
（
） 
们有时
锁在织布机上，晚上
气
