Lì / shǐ / kè / shàng / lǎo / shī / jiè / shào / le / Xī / Liáng / de / jiàn / lì / hé / miè / wáng

历史课上，老师介绍了西凉的建立和灭亡。

In history class, the teacher discussed the founding and fall of Western Liang.