一个英语句子的成分分析即主语部分,宾语,表语.
语句如下 I recently heard a story about a famous research scientist who had made several very important
medical breakthrouchs
who had made several very important medical breakthrouchs 这一部分是定语从句,I为主语,recently副词修饰heard,heard是谓语,a story是宾语?（不确定） about a famous research scientist,这一部分是什么?several very important medical 是不是作为定于修饰breakthrouchs?,