2 sentences for 好日子 (hǎo​rì​zi)

1. 咱们挑个好日子把婚事给办了。

   zán​men tiāo gè hǎo​rì​zi bǎ hūn​shì gěi bàn le.

   Let's pick an auspicious day to hold the wedding.

   Source: Dong Chinese Dictionary

2. 通过勤奋劳动，全家都过上了好日子。

   tōng​guò qín​fèn láo​dòng, quán​jiā dōu guò​shàng le hǎo​rì​zi.

   Through hard work, the whole family has achieved a good life.

   Source: Dong Chinese Dictionary