n.

1. 真空[C]
   We could not pull apart two plates which enclosed a vacuum.

   如果两个盘子间是真空，我们就无法将它们分开。

2. （心灵的）空白，空虚[S]
   Her husband's death left a vacuum in her life.

   她丈夫的死使她的生活变得空虚。

3. 真空吸尘器；真空装置[C]
   The porter turned off the vacuum.

   清洁工关掉真空吸尘器。

4. （跟外界隔绝的）孤立状态[C]
   Some people are living in a vacuum.

   有些人过着与世隔绝的生活。

vt.

1. 【口】用真空吸尘器清扫[（+out）]
   I vacuumed my room yesterday.

   昨天我用吸尘器清扫了房间。

n.

1. a space entirely devoid of matter.
   ▸a space or container from which the air has been completely or partly removed.
2. a gap left by the loss or departure of someone or something important.
3. (pl. vacuums)
   a vacuum cleaner.

v.