Lì / shǐ / kè / shàng / lǎo / shī / jiè / shào / le / Xīng / zhōng / huì / de / chéng / lì / bèi / jǐng。

历史课上，老师介绍了兴中会的成立背景。

In history class, the teacher introduced the background to the founding of the Revive China Society.