grandparent

n. /ˈɡrænperənt/ A1

祖父（母）；外祖父（母）

A parent of someone's mother or father.

仙境例句

A picture of each grandparent hung by the door: two old men and two old ladies.

门边挂着每位祖父母的画像：两位老爷爷和两位老奶奶。