be made of 和 be made up of有什么区别桥由石头制成,是用be made of 还是 be made up _英语解答

be made of 和 be made up of有什么区别
桥由石头制成,是用be made of 还是 be made up of
为什么?
请用be made up of举例

人气：312 ℃　时间：2020-01-30 19:12:19

解答

be made of指看得出原料的,如The bridge is made of stones.be made from指看不出原料的,如Paper is made from wood.be made up of更强调由一组里的某些部分构成,如Our class is made up of 50 students....