the passing down of traits from one generation to another within a family
血统, 世系
这位著名厨师为延续家族的烹饪血统而感到自豪，使用代代相传的传统食谱。
a family in which the parents live with the children from their own relationship along with the children from previous ones
混合家庭, 重组家庭
驾驭混合家庭的动态可能具有挑战性，但开放的沟通帮助他们建立了牢固的关系。
membership in a family of noble rank or social prominence
贵族血统, 贵族
文学中贵族血统常象征着世袭特权和社会地位。
a family in which one parent is not present because of divorce or seperation
破碎的家庭, 不完整的家庭
the state of being biologically related to someone
血缘关系, 血亲
基因研究揭示了孤立人群中高度的近亲关系，表明亲密的家庭关系。
the recorded ancestry or lineage of individuals, typically in the context of their descendants tracing back to a common ancestor
血统, 家谱
他来自医生的血统，几代人都在行医。
one or all the descendants of an ancestor
后代, 子孙
这位著名艺术家对他的后代感到非常自豪，其中许多人追随他的脚步从事创造性职业。
a woman who agrees to carry and take the responsibility of another couple's child
代孕母亲, 代理母亲
代孕母亲与这对夫妇建立了密切的联系，在整个怀孕期间分享更新和经验。
a person from whom one inherits DNA and is directly responsible for their birth
生物学父母, 亲生父母
DNA测试确认了孩子的生物学父母，在一个复杂的家庭情况中提供了清晰度。
a person from whom other offsprings are descended
祖先, 先驱
这位科学家的开创性研究为未来的发现铺平了道路，使他成为该领域的先驱。
