Question

老师，您看这句话说的对吗？

老师，这样一句话，the remaining 30% (of electricity consumed) is made up by A and B.
这句话这样写可以吗？
括号里面的可以省略吗？

Answer 1

括号里的不能去掉，is made up by应该为made up of，具体如下

be made from 看不出材料
• Paper is made from wood.

Use made of when the original materials have not been completely changed and you can still see them：
be made of: 看得出材料
• a table made of wood!!

be made up of：由。。。组成（常常可以区分单个元素）
The committee is made up of representatives from every state.

made from, made of, made by
When you are talking about the materials that are used to make something, you say that it is made of or made from those materials.

Use made from when the original materials have been completely changed and cannot be recogniz

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