真空的

例句：

1. 1. The vacuumcleaner is designed to suck up dust anddirt.
   真空吸尘器设计用来吸走灰尘和污垢。
2. 2. The room was left in avacuum after the fire.
   火灾过后，房间一片狼藉。
3. 3. The scientist used a vacuumto remove the gas from the sample.
   科学家使用真空泵从样本中抽出气体。