vacuum1/ˋvækjUəm; ˈvækjuəm/n 1 [C] a vacuum cleaner 真空吸尘器2 [C] a space that is completely empty of all air or gas 真空3 [singular 单数] a situation in which someone or something is missing or lacking 失落感﹐空虚: His death left a vacuum in her life. 他的去世使她的生活变得空虚。
vacuum2v [I,T] to clean a place using a vacuum cleaner 用真空吸尘器清扫