The caste system is one where ones parentage determines ones place in society.
等级制度以人的出身决定其社会地位。

Genetic Diversity of Sichuan Wheat Germplasm Based on Coefficient of Parentage
应用亲缘系数分析四川小麦种质资源的遗传多样性

My dog, Holly, was a gentle, gregarious, wellbehaved sevenyearold of mixed parentage.
我的混血狗霍莉7岁, 它性情温和, 合群, 有礼貌。

Another tranche will concentrate on attacking the parentage and lifestyle of the author.
而另一些则总是针对作者得出身和生活方式发起攻击。

Microsatellites are used for parentage testing in all equine genetic laboratories around the world.
微卫星在世界所有马的遗传实验室都用于亲子鉴定。

Some hope that Obamas mixed parentage and peripatetic childhood have made him more sympathetic to other cultures.
在美军入侵阿富汗7年后, 那里的局势变得急剧恶化。

Perhaps his mixed parentage gave him the multicultural background needed to be culturally bilingual, creating the dialogue that may bridge our divide.
他多元文化背景会创造出愈合我们之间的分歧的对话。