a common use of gold和hundreds of usesfor the peanut这里的use应该用什么介词？
依据词典解释，use表示作用与功效、用处、使用方法时搭配的介词是for。比如：
The law requires the use of seat belts. [=the law requires people to wear seat belts]
We talked about the author's use of irony in the novel.
use表示用、用这个动作意义时，搭配的介词是of，of表示动宾关系或主谓关系，即of的宾语要么是use这个动作逻辑上的宾语，要么是主语。比如：
Doctors have found a new use for the drug.
I thought you might be able to find a use for this lamp.
Do you have a/any use for this old computer?
你的二个词组中use应该都是作用与功效的意思，介词用for为宜。
