rén lèi xué jiā / rèn wéi / qún hūn / shì / yuán shǐ shè huì / de / yì zhǒng / hūn yīn / xíng shì

人类学家认为，群婚是原始社会的一种婚姻形式。

Anthropologists believe that group marriage was a form of marriage in primitive societies.