I work in a dark workplace that has poor ventilation.
我的工作环境恶劣，漆黑而且通风不畅。
Before work should open ventilation equipment, open indoor door window maintain indoor ventilation.
工作前应开启通风设备，打开室内的门窗保持室内通风良好。
The ventilation fan switch on the button panel does not work here.
掣板上的抽风机开关掣在这里并不能运作。
The ventilation fan switch on the button panel does not work here.
掣板上的抽风机开关掣在这里并不能运作。
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