vacuum

vacuum
[ˈvakjʊəm]
(pl. vacuums vacua -jʊə)
  1. a space entirely devoid of matter
    空,真空状态
    ■a space or container from which the air has been completely or partly removed
    真空
    ■[usu. in sing.]a gap left by the loss, death, or departure of someone or something formerly playing a significant part in a situation or activity
    空白,真空
    the political vacuum left by the death of the Emperor.
    皇帝死后留下的政治真空。
  2. (pl. vacuums)(informal)a vacuum cleaner
    (非正式)真空吸尘器
verb
  1. [with obj.](informal)clean with a vacuum cleaner
    (非正式)使用真空吸尘器清扫
    the room needs to be vacuumed.
    这房间要用吸尘器打扫了。
常用词组
in a vacuum
  1. (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
    (需考虑的活动,问题)似在真空中;脱离现实
语源
  1. mid 16th cent.: modern Latin, neuter of Latin vacuus 'empty'
英语宝典
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