在油漆天花板之前，先得用灰泥把裂缝填塞起来。 The cracks in the ceiling have to be plastered up before you can start painting.
石膏灰泥板，灰胶纸柏板由石膏灰泥作芯板结合几层纤维板或纸浆板制成的硬板，在建筑中用于代替灰泥或木板来建造墙壁 A rigid board made of layers of fiberboard or paper bonded to a gypsum plaster core, used instead of plaster or wood panels in construction to form walls.
灰泥已经开始从墙上脱落。 The plaster had started to come away from the wall.
待房间的灰泥乾後才可粉刷。 The plaster will have to dry out before you can paint the room.
