vacuum 是

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vacuum 是

vacuum 是
vacuum 是

vacuum 是
名词 n.
1.真空[C]
We could not pull apart two plates which enclosed a vacuum.
如果两个盘子间是真空,我们就无法将它们分开.
2.(心灵的)空白,空虚[S]
Her husband's death left a vacuum in her life.
她丈夫的死使她的生活变得空虚.
3.真空吸尘器;真空装置[C]
The porter turned off the vacuum.
清洁工关掉真空吸尘器.
4.(跟外界隔绝的)孤立状态[C]
Some people are living in a vacuum.
有些人过着与世隔绝的生活.
及物动词 vt.
1.【口】用真空吸尘器清扫[(+out)]
I vacuumed my room yesterday.
昨天我用吸尘器清扫了房间.