The remaining 22% lived in the home of another family member such as a grandparent, in-law or sibling, a non-relative, or in group quarters like college dormitories.
2019年6月四级真题(第二套)阅读 Section B
柯林斯高阶英汉双解学习词典释义
N-COUNT
(外)祖父母
Your grandparents are the parents of your father or mother.