其它的你都懂了,我只说说the widely held belief.
举例:
他把借来的钱弄丢了
He lost the money(that) he had borrowed
他把借来打算买车的钱弄丢了.
这句话可以说有两个定语从句了,如果译成
He lost the money(that)he had borrowed(that)he had planned to buy a car with就不符合习惯了.这时就可以讲一个定语从句变成前置修饰语:
He lost the borrowed money that he had planned to buy a car with.
说完了,希望对你有一点点启发.