1 a space that is completely empty of all substances, including air or other gases 真空:
vacuum-packed foods (= in a pack from which the air has been removed)真空包装的食品
2 [usu.sing] a situation from which sth is missing or lacking 缺少某物的情况;空虚
3 (informal 非正式)=VACUUM CLEANER
4 [usu.sing] the act of cleaning sth with a vacuum cleaner 用真空吸尘器打扫:
to give a room a quick vacuum用吸尘器打扫一下房间
vacuum²
/ˈvækjuəm ||; ˈvækjυəm/verb
[I,T] to clean sth using a vacuum cleaner 用真空吸尘器清扫
[SYN] hoover 同义词为hoover