lì / shǐ / kè / shàng / lǎo / shī / jiè / shào / le / hēi / sǐ / bìng / de / chuán / bō / hé / yǐng / xiǎng

历史课上，老师介绍了黑死病的传播和影响。

In history class, the teacher explained the spread and impact of the bubonic plague.