vacuum
音標發(fā)音
- 英式音標 [?v?k.ju?m]
- 美式音標 [?v?k.ju?m]
- 國際音標 ['v?kju?m]
- 英式發(fā)音
- 美式發(fā)音
基本解釋
- n. 真空；空間；真空吸塵器
- adj. 真空的；利用真空的；産生真空的
- vt. 用真空吸塵器清掃
詞源解說
- 直接源自拉丁語的vacuum，意爲空著的地方。
詞根記憶
- vacu(空) + um→真空
- vac(空) + uum→真空
- vac(空的) + uum→真空
- vacu(=vac空) + um→真空
詞組短語
- fill a vacuum 填補真空
- produce 〔create, cause〕 a vacuum 産生〔制造〕真空
- low 〔rough〕 vacuum 低真空
- fine 〔high, perfect〕 vacuum 高真空
- vacuum tube 真空琯；電子琯
- vacuum permeability 真空磁導率
- vacuum pumps 水力噴射器;真空幫浦;真空泵;水動力噴灑器
用作名詞 (n.)
動詞+～
形容詞+～
短語
英英字典
- (EMPTY SPACE) a space from which most or all of the matter has been removed, or where there is little or no matter
- (CLEANER) a vacuum cleaner
- to use a vacuum cleaner to collect dust, dirt, etc.
- If someone or something creates a vacuum, they leave a place or position that then needs to be filled by another person or thing.
- If something is done in a vacuum, it is not affected by any outside influences or information.
- A vacuum is a space that contains no air or other gas.
- A vacuum is the same as a .
- If you vacuum something, you clean it using a vacuum cleaner.
劍橋英英字典
柯林斯英英字典
專業(yè)釋義
- 真空吸塵器
- 真空
- 真空
- 真空
- 真空
- 真空
- 真空