The Imbat Ket were originally divided into two exogamous phratries which exchanged marriage partners.
印八偈人原本分为两个交换配偶的异族通婚的氏族。
2
He did not by any means discover the existence of exogamous groups; still less did he understand them.
他根本没有发现外婚制集团存在的事实，也完全没有理解这个事实。
3
In a word, the matter appears simple and natural as soon as we abandon the extraordinary conception of the endogamous Roman gens and regard it, with Morgan, as originally exogamous.