floor-on-grade

例句：

1. 1.The floor-on-grade is a crucial part of the design.
   地板是设计中至关重要的一部分。
2. 2. The floor-on-grade has been refinished to match the rest of the room.
   地板已经重新打磨，以与房间的其他部分相匹配。
3. 3.The floor-on-grade is where guests are seated during the ceremony.
   在仪式期间，宾客们坐在地板上。