如题所述
be made of/be made from 都是表示“由...制成”;be made of 表示在产品中能够看出原材料;be made from表示在产品中看不出原材料。
be made into的意思是:把...制成...;
be made up of 的意思是:由...组成。
be made into的意思是:把...制成...;
be made up of 的意思是:由...组成。
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