名词
中文翻译：曾祖父
同义词：
['great-grandparent', 'great-great-grandparent']
例句：
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1.He is the great-great-grandfather of my great-grandmother's son.
他是我祖母的儿子的曾祖父。
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2.The family has a long lineage with many great-great-grandfathers in their history.
这个家族有着悠久的历史，有许多曾祖父。
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3. Many families trace their roots back to great-great-grandfathers who settled in this area centuries ago.
许多家庭追溯到数百年前定居在该地区的曾祖父们。