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TOEFL IELTS BNC: 5526 COCA: 4930

vacuum

noun
/ˈvækjuːm/
/ˈvækjuːm/
Idioms
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  1. a space that is completely empty of all substances, including all air or other gas真空
    • a vacuum pump (= one that creates a vacuum)真空泵
    • vacuum-packed foods (= in a package from which most of the air has been removed)真空包装的食品
    Extra Examples
    • Other gases rush in to fill the vacuum.其他气体涌进来充满真空。
    • The machine then creates a vacuum.这样机器便制造出一个真空。
    Topics Physics and chemistryc1
    Oxford Collocations Dictionaryadjective
    • perfect
    • cultural
    • moral
    verb + vacuum
    • create
    • leave
    • produce
    See full entry
  2. [usually singular] a situation in which somebody/something is missing真空状态;空白;空虚
    • His resignation has created a vacuum which cannot easily be filled.他的引退造成了难以填补的空白。
    • The writer criticized the moral vacuum in society.作家批评了社会的道德缺失。
    Oxford Collocations Dictionaryadjective
    • perfect
    • cultural
    • moral
    verb + vacuum
    • create
    • leave
    • produce
    See full entry
  3. [usually singular] the act of cleaning something with a vacuum cleaner(用真空吸尘器所做的)清洁,清扫
    • to give a room a quick vacuum用吸尘器把房间迅速清扫一下
  4. Word Originmid 16th cent.: modern Latin, neuter of Latin vacuus ‘empty’.
Idioms
in a vacuum
  1. existing separately from other people, events, etc. when there should be a connection与世隔绝;脱离实际
    • This kind of decision cannot ever be made in a vacuum.这种决定绝不能脱离实际。

vacuum

verb
/ˈvækjuːm/
/ˈvækjuːm/
[transitive, intransitive]
Verb Forms
present simple I / you / we / they vacuum
/ˈvækjuːm/
/ˈvækjuːm/
he / she / it vacuums
/ˈvækjuːmz/
/ˈvækjuːmz/
past simple vacuumed
/ˈvækjuːmd/
/ˈvækjuːmd/
past participle vacuumed
/ˈvækjuːmd/
/ˈvækjuːmd/
-ing form vacuuming
/ˈvækjuːmɪŋ/
/ˈvækjuːmɪŋ/
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  1. vacuum (something) to clean something using a vacuum cleaner用真空吸尘器清扫 synonym hoover
    • Have you vacuumed the stairs?你用吸尘器清扫楼梯了吗?
    Topics Houses and homesb2
    Word Originmid 16th cent.: modern Latin, neuter of Latin vacuus ‘empty’.

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