海鸟2010
metal [�0�4metl]n.金属You have to file away for hours to get this metal smooth.你得锉上几个小时才能使这金属变得光滑。
小袅袅09
英文名字：纸箱：paper box;玻璃: glass；金属: metal.例如：The composition of paper box, glass and metal is completely different. The paper box is consisted of fabric, glass of silicone dioxide, and metal of steel or other metal elements.
