biological sibling編輯正在努力提供更完整的內容，建議 20 分鐘後再回來看看biological siblingbiological sibling — 名詞名詞1. a brother or sister related by birth, not by adoption or marriage1.名詞釋義親生手足a brother or sister related by birth, not by adoption or marriage例句She grew up with her biological sibling in the same house.