lì / shǐ / kè / shàng / lǎo / shī / xiáng / xì / jiǎng / jiě / le / píng / jīn / zhàn / yì / de / jīng / guò / hé / yǐng / xiǎng

历史课上，老师详细讲解了平津战役的经过和影响。

In history class, the teacher explained the course and impact of the Pingjin Campaign in detail.