Some parents are going to study the subjects their children learn at school.

问题描述:

Some parents are going to study the subjects their children learn at school.
这句话的句子结构有没有错误,若没有错误帮我把它翻译成中文.
that后面是不是定语从句,subject是先行词

Some parents are going to study the subjects that their children learn at school.
很多家长们学习他们的孩子们在学校学习的科目.