Zài / lì / shǐ / kè / shàng / lǎo / shī / jiǎng / dào / le / Shén / shèng / Luó / mǎ / dì / guó / de / xuǎn / dì / hóu

在历史课上，老师讲到了神圣罗马帝国的选帝侯。

In history class, the teacher talked about the prince-electors of the Holy Roman Empire.