n.真空；真空吸尘器；空白
adj.产生（利用）真空的
v.用吸尘器打扫
The food is kept in the absolute vacuum. 这食物保存在绝对真空中。
I bought a vacuum yesterday. 昨天我买了个真空吸尘器。
His wife's death left him a vacuum in his life. 他妻子的去世使他的生活变得空虚。
用作形容词 (adj.)These're vacuum controls. 这是些真空控制装置。
用作动词 (v.)Please vacuum the carpets after the breakfast. 早饭后请用吸尘器清扫下地毯。
在科技用语中vaccum的复数形式是 vacua。
vacuum还可用作动词,作“用真空吸尘器清扫(某物)”解。例如:I vaccum the carpet twice every week.我每周用吸尘器打扫地毯两次。
