2 sentences

1. 原始人学会了如何保存火种。

   yuán​shǐ​rén xué​huì le rú​hé bǎo​cún huǒ​zhǒng.

   Primitive people learned how to preserve fire.

   Source: Dong Chinese Dictionary

2. 这次起义播下了革命的火种。

   zhè cì qǐ​yì bō​xià le gé​mìng de huǒ​zhǒng.

   This uprising sowed the seeds of revolution.

   Source: Dong Chinese Dictionary