2 sentences for 喜事 (xǐ​shì — happy occasion)

1. 红白喜事都要讲究礼节。

   hóng bái xǐ​shì dōu yào jiǎng​jiu lǐ​jié.

   Etiquette must be observed for both weddings and funerals.

   Source: Dong Chinese Dictionary

2. 这件喜事很快就广播开了。

   zhè jiàn xǐ​shì hěn kuài jiù guǎng​bō kāi le.

   This happy news quickly spread far and wide.

   Source: Dong Chinese Dictionary