lì shǐ / kè shàng / lǎo shī / xiáng xì / jiǎng jiě / le / fēn fēng zhì / duì / xī zhōu / shè huì / de / yǐng xiǎng

历史课上，老师详细讲解了分封制对西周社会的影响。

In history class, the teacher explained in detail the impact of the enfeoffment system on Western Zhou society.