vacuum

• 指完全没有任何物质的空间，即真空；也指利用吸力清洁表面的设备，即吸尘器。

A noun referring to a space entirely devoid of matter, or a device (short for vacuum cleaner) used for cleaning surfaces by suction.

1. Space devoid of matterB2formal

   A space entirely empty of matter, or from which air has been removed.

   真空

   • Sound cannot travel through a vacuum.
   • The experiment was conducted in a vacuum chamber.
   • Outer space is a near-perfect vacuum.

   同义词emptinessnothingnessvacuityvoid

2. Vacuum cleanerA2informal

   An electrical appliance used for cleaning floors, carpets, and furniture by suction.

   吸尘器

   • She used the vacuum to clean the living room carpet.
   • The vacuum is making a strange noise.
   • I need to buy a new vacuum for the house.

   同义词hoovervac

3. Absence or voidB2formal

   A situation or state characterized by emptiness or a lack of something.

   真空

   • His resignation left a power vacuum in the company.
   • The region experienced a cultural vacuum after the war.
   • She felt a vacuum in her life after moving away.

   同义词absenceblankemptinessgapholelacklacunanothingnessvacuityvoid

   反义词abundancefullnessplenitudepresencesaturation

• 用吸尘器清除表面或房间里的灰尘和脏物的动作。

A verb used to indicate the act of cleaning a surface or area using a vacuum cleaner.

1. Clean with a vacuum cleanerA2formal

   To clean a surface, such as a floor or carpet, using a vacuum cleaner.

   用吸尘器清洁

   • She vacuumed the living room before the guests arrived.
   • I need to vacuum the carpet because it's covered in dust.
   • He vacuumed the entire house on Saturday morning.

   同义词hoovervac