kè / táng / shàng / lǎo / shī / bǐ / jiào / le / yì / fū / duō / qī / zhì / hé / yì / fū / yì / qī / zhì

课堂上，老师比较了一夫多妻制和一夫一妻制。

In class, the teacher compared polygyny with monogamy.