2 sentences

1. 通过接种牛痘，人类成功消灭了天花。

   tōng​guò jiē​zhòng niú dòu, rén​lèi chéng​gōng xiāo​miè le tiān​huā.

   Through cowpox vaccination, humanity successfully eradicated smallpox.

   Source: Dong Chinese Dictionary

2. 由于熬夜，他的鼻子上长了一个红痘。

   yóu​yú áo​yè, tā de bí​zi shàng zhǎng le yī gè hóng dòu.

   Because he stayed up late, he got a red pimple on his nose.

   Source: Dong Chinese Dictionary