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VOA慢速英语:美国公司担心办公室有空气传播病毒的风险
2020-08-01来源:和谐英语
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airborne–adj. moving in or carried through the air
transmission–n. the process of sending something from one place to another or between people
due diligence–n.(legal) the care that a reasonable person takes to avoid harm to others or their property
filtration–n. the process of removing pollutants from the air or water
ventilation–n. a system that lets fresh air flow through a building