English主要词典
vacuum
Universal Words
noun, verb
noun
1 a space that is completely empty of all substances, including all air or other gas:
a vacuum pump (= one that creates a vacuum in an enclosed space) * vacuum-packed foods (= in a package from which most of the air has been removed)
2 [usuallysing.] a situation in which sb/sth is missing or lacking:
His resignation has created a vacuum which cannot easily be filled.
3 [usuallysing.] the act of cleaning sth with a vacuum cleaner:
to give a room a quick vacuum
IDIOMS
in a vacuum existing separately from other people, events, etc. when there should be a connection:
This kind of decision cannot ever be made in a vacuum.
verb to clean sth using a vacuum cleaner
SYNHOOVER [VN] Have you vacuumed the stairs? [also V]
