lǎo / shī / jiè / shào / le / Xǐng / shì / Héng / yán / de / zuò / zhě / Féng / Mèng / lóng / hé / tā / de / lì / shǐ / bèi / jǐng老师介绍了《醒世恒言》的作者冯梦龙和它的历史背景。The teacher introduced the author Feng Menglong and the historical background of Stories to Awaken the World.