He is full of ambition to become an actor

问题描述:

He is full of ambition to become an actor
He is full of ambition to become an actor.
句中“to become an actor ”做什么成分?为什么?怎么判断?

to become an actor.
作定语 修饰 ambition ,告诉我们是:成为演员的抱负为什么啊?怎么判断?除初学着请详细点。