cluster marriage的用法和樣例：
例句
- At the time Morgan wrote his book, our knowledge of group marriage was still very limited.
當摩爾根寫(xiě)他的著(zhù)作的時(shí)候，我們關(guān)于群婚的知識還是非常有限的。 - This hetaerism derives quite directly from group marriage, from the ceremonial surrender by which women purchased the right of chastity.
這種雜婚制直接起源于群婚制，起源于婦女為贖買(mǎi)貞操權利而作的獻身犧牲。
