monochasial cyme

例句：

1. 1.The society is committed to promoting a monogamous marriage system.
   该社会致力于推广一夫一妻制的婚姻制度。
2. 2. The couplehas been living together for over 30 years, practicing a monogamouslifestyle.
   这对夫妇已经共同生活了30多年，过着一夫一妻的生活。
3. 3.In some cultures, polygamy isstill practiced, but it'snot as common as in monarchicalsocieties.
   在一些文化中，仍然实行一夫多妻制，但不如君主制社会普遍。