英语语法问题 逻辑主语问题

Answer:现在分词短语作后置定语
Zookeepers have expanded one's definition of care,including concern for the animal's mental state as well as for its physical well-being.
把现在分词短语转化为非限制性定语从句如下:
=Zookeepers have expanded one's definition of care,"which include "concern for the animal's mental state as well as for its physical well-being.
这里"which"指代所修饰的先行词" definition"
祝 学习进步!