be made of和be made from有什么区别?请举例说明
问题描述：
be made of和be made from有什么区别?请举例说明
答
be made of“由…构成”,能看出原材料,如：
The desk is made of wood.The knife is made of metal.be made from“由…构成、制成成品”,被制成的东西看不出原材料,
如：The paper is made from the wood