单配偶

例句：

1. 1.In some societies, monogamy is the norm for marriage and family life.
   在一些社会中，一夫一妻制是婚姻和家庭生活的常态。
2. 2.The couple decided to have a monogamous relationship after their divorce.
   这对夫妇离婚后决定保持一夫一妻制的关系。
3. 3.She was raised in a monogamous household where she learned to value loyalty and commitment.
   她在一个一夫一妻制的家中长大，学会了珍视忠诚和承诺。