柯林斯词典vacuum cleaner (vacuum cleaners) 1. N-COUNT A vacuum cleaner or a vacuum is an electric machine that sucks up dust and dirt from carpets. 真空吸尘器 返回 vacuum cleaner剑桥词典(also vacuum); (informal vac); (UK also trademark Hoover) a machine that cleans floors and other surfaces by sucking up dust and dirt 真空吸尘器 返回 vacuum cleaner