be made of 和be made into的区别

be made of 用于直接看出原材料

是“由……制成”， of后面跟可以看到的原材料。如：The desk is made of wood.

be made into的意思为"被制成为…"。由什么材料做成，into后面跟产品，

This piece of wood will be made into a small bench. 这块木头将要被制成一个小凳。