及物动词
名词
1. 空位;空缺;空白
If someone or something creates a vacuum, they leave a place or position which then needs to be filled by another person or thing.
2. 在封闭状态中;与外界隔绝
If something is done in a vacuum, it is not affected by any outside influences or information.
3. 用真空吸尘器打扫
If you vacuum something, you clean it using a vacuum cleaner.
4. 真空
A vacuum is a space that contains no air or other gas.
1. an electrical home appliance that cleans by suction
Synonym: vacuum cleaner
2. a region that is devoid of matter
Synonym: vacuity
3. an empty area or space
e.g. the huge desert voids
the emptiness of outer space
without their support he'll be ruling in a vacuum
4. the absence of matter
Synonym: vacuity