vacuum cold trap

例句：

1. 1.The vacuum cleaner is very useful for cleaning the floor.
   真空吸尘器对于清洁地板非常有用。
2. 2.The vacuum cleaner has a powerful suction that can suck up dust and dirt.
   真空吸尘器具有强大的吸力，可以吸走灰尘和污垢。
3. 3. Vacuuming the carpets every week helps to keep them clean and fresh.
   每周打扫地毯有助于保持它们干净和新鲜。