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Nuannuan暖
钢铁 steel不锈钢 stainless steel合金 alloy铜 copper银 silver铁 iron木头 wood塑料 plastic橡胶 rubber纤维 fiber
Candy526368302
material.最通用最普遍.stuff.口语较多用,多指日常品substance.物理材料,物品
天蝎兔兔
材料：material原材料：raw material key is made of Iron用***做成，be made of, be made from,如果能从外观看出原材料的材质，则用be made of,如果不能看出材质，则用be made from.例如this bridge is made of stone.这座桥是石制的（外观可以看出材料）paper is made from wood. 纸是木头做成的（外观看不出材料）
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