lì / shǐ / kè / shàng / lǎo / shī / jiè / shào / le / sà / lā / sēn / dì / guó / yǔ / ōu / zhōu / shì / jiè / de / jiāo / liú

历史课上，老师介绍了萨拉森帝国与欧洲世界的交流。

In history class, the teacher introduced the exchanges between the Saracen Empire and the European world.