材料描述英文

Material is introduced

名词 n. 1.材料,原料[C][U] material（s)eg.Wood and stone are the only raw materials on the island. 木材和石头是这个岛上仅有的原材料。

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）