plaster

/ˈplæstər/

a mixture of lime or gypsum with sand and water; hardens into a smooth solid; used to cover walls and ceilings

中文释义：灰泥；石膏

The workers applied a layer of plaster to the wall to create a smooth surface.

工人们在墙上涂了一层灰泥以形成光滑的表面。

Old buildings often have cracks in the plaster that need to be repaired.

老建筑的灰泥上常有裂缝需要修补。