“——if not their own then that of their parents and grandparents.”怎么理解,省略了那些?

题目

“——if not their own then that of their parents and grandparents.”怎么理解,省略了那些?
What is odd is that they have perhaps most benefited from ambition——if not their own then that of their parents and grandparents.

答案

最奇怪的事是他们大多数从野心或抱负中获益,不是他们自己的抱负就是来自于他们的父母或祖父母 省略了名词 if not their own ambition then the ambition of their parents and grandparents 纯属个人理解哦