2 sentences for 说 (shuō — theory)

1. 这就是著名的日心说。

   zhè jiù shì zhù​míng de rì​xīn shuō.

   This is the famous heliocentric theory.

   Source: Dong Chinese Dictionary

2. 在历史课上，我们学习了关于舜的传说故事。

   zài lì​shǐ kè shàng, wǒ​men xué​xí le guān​yú Shùn de zhuàn shuō gù shì.

   In history class, we learned about the legends of Shun.

   Source: Dong Chinese Dictionary