furniture
furniture统指“家具”，不指“一件家具”，前面不可加a，也没有复数形式。“一件家具”该说a piece of furniture, an article of furniture或a bit of furniture。“多件家具”该说pieces（或articles，或bits）of furniture。a stick of furniture和sticks of furniture指简单的家具。“一套家具”该说a set of furniture或a suite of furniture。
