1）be made up of 意思是：由...组成（构成）的,是指一个整体由很多分散的部分组成.例子请看：The energy is made up of 12 parts.(这台机器是由12个零件组成的) m2）be made out of 意思是：由...制成,做成的（一般指看得出材料的）,例如：The windows are made out of hardened glass(这些窗都是由钢化玻璃制成的).