kè / táng / shàng / lǎo / shī / jiè / shào / le / Suǒ / fú / kè / lè / sī / jí / qí / dài / biǎo / zuò

课堂上，老师介绍了索福克勒斯及其代表作。

In class, the teacher introduced Sophocles and his representative works.