Why be airtight room when me or a person when am I met very fear to meet cranky who can help me?
为什么当我在密闭的房间或者是一个人的时候我就会很害怕会胡思乱想谁能帮帮我?
Article 16: The Windows, ceilings, entering pipes, ventilation, light fixtures and joints between walls and ceilings in clean room (area) shall be airtight.