high-grade cement mortar

例句：

1. 1.The construction crew used high-grade cement mortar to build the foundation of the new building.
   建筑队使用高级水泥砂浆建造了新大楼的基础。
2. 2. This high-grade cement mortar is durable and can withstand heavy loads.
   这种高级水泥砂浆耐用且能承受重载。
3. 3.The engineers mixed high-grade cement mortar to create a smooth surface for the floor.
   工程师们混合高级水泥砂浆来为地板创造一个光滑的表面。