1. In many tribal societies, exogamy is practiced to promote kinship ties between different groups.
在许多部落社会中,为了促进不同群体之间的亲属关系,会实行异族通婚。
2. The practice of exogamy can help prevent inbreeding and maintain genetic diversity in a population.
异族通婚的实践可以帮助防止近亲繁殖,并在一个群体中保持基因多样性。