wall·board
noun/ˈwɔːlbɔːd/
/ˈwɔːlbɔːrd/
[uncountable] (especially North American English)- a building material used to cover walls and ceilings, usually made from sheets of thick paper with wood pulp or plaster between them
墙板：用于覆盖墙壁和天花板的建筑材料，通常由厚纸片和木浆或石膏制成，两者之间