heaving floor

例句：

1. 1. The heaving floor made it difficult to walk.
   起伏的地板使得走路变得困难。
2. 2.The house was built on a heaving floor, which made it hard to move around.
   房子建在一块起伏的地板上，这使得移动变得困难。
3. 3. The heaving floor caused the furniture to shift and make the room feel unstable.
   起伏的地板使家具移位，让房间感觉不稳定。