She had an impeccable aristocratic pedigree.是什么意思？

She had an impeccable aristocratic pedigree.

她有纯正的贵族血统。

she

pron. 她，它；

例句
Her lover walked out on her after she had aborted their child.
她的情人在她打掉胎儿后甩了她。

had

v. 有（ have的过去式和过去分词 ），（亲属关系中）接受，拿，买到；

例句
He claimed that his parents had abandoned him...
他声称父母遗弃了他。

an

art. 一（在元音字母前代替不定代词a），一任一某一，一个；

例句
He started eating an apple...
他开始吃苹果。

impeccable

adj. 无缺点的，无瑕疵的，不会做坏事的；n. 不会作坏事的人，毫无缺点的人；

例句
David's good looks and impeccable manners had always made her blind to his faults...
戴维英俊的长相和完美的举止总是让她对他的缺点视而不见。

aristocratic

adj. 贵族的，贵族气派的，赞成贵族政治的，爱挑剔的；

例句
...a wealthy, aristocratic family...
富有的贵族家庭

pedigree

n. 血统，家谱，血统表；adj. 纯种的，有血统来源的；

例句
Like any other commodity, pedigree dogs are covered by the Sale of Goods Act.
像其他商品一样，纯种狗的买卖同样受《货物买卖法》的约束。