floorless

例句：

1. 1. The room was completely floorless, making it difficult to navigate.
   房间完全无地板，使得难以导航。
2. 2.The new building is floorless, which makes it more energy efficient.
   这座新建筑没有地板，这使得它更加节能。
3. 3. The old house had a wooden floor, but the new one is floorless.
   旧房子有木制地板，但新房子没有。