water slab

例句：

1. 1. The engineer used a water slab to level the foundation.
   工程师用一块水板来平整地基。
2. 2. The construction crew was working on a water slab for the new bridge.
   建筑队正在为新桥制作一块水板。
3. 3.The carpenter carefully placed the water slab in the corner of the room.
   木匠小心翼翼地将这块水板放在房间的角落。