ancestry
n.祖先；世家，名门；[生]系谱；血统
网络解释.祖先；先世；始祖；先辈
词形变化:
复数：ancestries
lineage descent extraction blood nationality
posterity
双语例句
1. 1 . Sri Lankans share a common ancestry with their Indian brethren.
斯里兰卡人和他们的印度兄弟有共同的祖先。
来自柯林斯例句