a list of the parents and other relations of an animal

The breeder showed us the dog's pedigree. 饲养员给我们看了这条狗的纯种系谱。

He breeds pedigree poodles/cattle (= ones whose parents and other relations are all of the same breed). 他饲养纯种狮子狗／牛。

a person's family history, education, and experience, or the history of an idea or activity

His voice and manner suggested an aristocratic pedigree. 他的发音和举止表明他出身贵族。

Isolationism has a long and respectable pedigree in American history. 孤立主义在美国历史上由来已久并受到推崇。