vacuum
英 ['v?kj??m]
美['v?kj??m]
- n. 真空；空間；真空吸塵器
- adj. 真空的；利用真空的；產(chǎn)生真空的
- vt. 用真空吸塵器清掃
詞組搭配
in a vacuum
(of an activity or a problem to be considered) isolated from the context normal to it and in which it can best be understood or assessed
（需考慮的活動(dòng)，問題）似在真空中；脫離現(xiàn)實(shí)