Do you believe that men are not naturally monogamous?你相信人类并非本来就是一夫一妻制的吗？

She wouldn't want to be in a monogamous relationship.她不会想要单一性伴侣的关系。

a monogamous relationship of two years两年的一夫一妻关系

The prairie vole is a sociable creature, one of 3% of mammal species that appear to form monogamous relationships.橙腹田鼠是一种群居动物, 是3%似乎具有一雄一雌关系的哺乳动物之一。