名词
中文翻译：父母树
同义词：
['ancestral tree', 'forebearing tree']
例句：
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1.The parent tree is a symbol of the family's heritage.
这棵父母树是家族传统的象征。
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2. The ancient parent tree has been passed down through generations.
这棵古老的父母树已经传了好几代了。
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3.The parent tree was planted by our great-grandfather.
这棵父母树是由我们的曾祖父种下的。