【be made up of】和【be made of】区别

e made up of
由…组成,由…构成 ,通常是可拆分的
The word "bookstore" is made up of the two words "book" and "store"
"书店"一辞是由"书"及"店"两字组成.
be made of 由……加工而成,可以看出原材料,但是通常已经改变形态了.
he doors of the palace were made of beaten gold.