great-grandmother

n.

曾祖母；

1. This pair of bracelets was handed down from my great grandmother.
   这副手镯是我曾祖母传下来的。
2. Is the old lady sitting beside him your great grandmother?
   坐在他身旁的老太太就是你的曾祖母吧？

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Tok Nyam: A Mini-Biography of a Malay Great-Grandmother
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Photography and Mourning: Excavating Memories of My Great-Grandmother
独立院校学生英语修辞能力培养——以《A Doll for Great-Grandmother》为例
VIDEO: 5-Year-Old Sings Great-Grandmother with Dementia 'Back to Life'