曾祖母

例句：

1. 1. She has a great-grandmother who loves to tell stories.
   她有一个非常喜欢讲故事的曾祖母。
2. 2. My grandfather's mother is my great-grandmother.
   我祖父的母亲是我的曾祖母。
3. 3.The grandmother in the family is our great-grandmother.
   家里的祖母是我们的曾祖母。