Question

ancestry

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an∙ces∙try / ˈænsɛstrɪ ; ˈænsəstri /
◙noun (plural ancestries) [C usually singular, U] [formal]
1. the members of your family who lived a long time ago
• 祖先，祖宗:
 »of … ancestry
 »Her mother is of German ancestry (=has German ancestors).
   她母亲祖籍德国。
 »Helen's family can trace their ancestry back to the 1700s.
  海伦家的世系可追溯至 18 世纪。