C 真空 space that is completely empty of all matter or gas
C 〈口〉真空吸尘器 vacuum cleaner
S 空间; 空虚; 空白 situation or environment characterized by emptiness
基本要点
在科技用语中vaccum的复数形式是vacua。
词汇搭配
动词+～
fill a vacuum 填补真空
produce〔create, cause〕 a vacuum 产生〔制造〕真空
形容词+～
low〔rough〕 vacuum 低真空
fine〔high, perfect〕 vacuum 高真空
句型例句
Sound waves cannot travel through a vacuum.声波不能在真空中传播。
I mean to buy a vacuum next month.下个月我打算买一台真空吸尘器。
His resignation has left a power vacuum at the head of the party.他的辞职使得该党的领导位置出现了权力真空。
His wife's death left a vacuum in his life.他妻子的去世使他的生活变得空虚。
学习参考
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。
