C U 列祖列宗the family or the race of people that you are descended from

　ancestry　的基本意思是“列祖列宗”，是“祖先”的统称，用作可数名词时常用单数形式，也可用作不可数名词。

　have Scottish ～　祖籍苏格兰
　trace one's ～　寻根
　lineal ～　直系祖先
　～ distinction　家门显贵
　a family of Danish ～　祖先是丹麦人的家庭
　a youth of royal ～　出身皇族的青年
　an American of Chinese ～　中国血统的美国人
　citizens of foreign ～　外国血统的公民
　be born of good ～　出身名门
　be of French ～　有法国血统

　Many of the early settlers in America had English ancestry.　许多美洲大陆上早期殖民者有英国血统。
　These buildings have an ancestry which can be traced back to Greece and Rome.　这些建筑物历史悠久，可上溯至古希腊古罗马时代。
　He was able to trace his ancestry back over 1000 years.　他将自己的世系追溯到了1000年以前。
　He boasted of his ancestry.　他夸耀自己出身名门。
　She takes great pride in her ancestry.　她对自己的家世感到自豪。
　He is of noble ancestry.　他出身贵族。
　Most white people are of European ancestry.　白人大多具有欧洲血统。
　Public schools admit children of all ancestries and religions.　公立学校招收各种家庭和宗教背景的学生。
　His wife was of royal ancestry.　他的妻子是王族的后裔。
　He was proud of his Native American ancestry.　他为自己美洲土著的血统而自豪。