句末的big and bright作何成分（前面有逗号）

问题描述

I'd like my house to be like a palace, big and bright.

请问这里的 big and bright 作何成分？

老师答疑

陈老师：

I'd like my house to be like a palace, big and bright.

=I'd like my house to be like a palace, which is big and bright.

解答如下：

这里的 big and bright 作定语成分，相当于一个“由关系代词which引导非限制性定语从句”