双层床

例句：

1. 1. The house has a double garage.
   这所房子有一个双车位车库。
2. 2.She bought a double bed for her new apartment.
   她为她的新公寓买了一张双层床。
3. 3. He decided to double the number of workers for the project.
   他决定将项目工人数量翻倍。