3 sentences

1. 至若春和景明，波澜不惊。

   zhì ruò chūn hé jǐng míng, bō​lán​bù​jīng.

   When the spring breeze is gentle and the sun is bright, the waves are calm.

   Source: Dong Chinese Dictionary

2. 家和万事兴。

   jiā hé wàn​shì xīng.

   Harmony in the family brings success to everything.

   Source: Dong Chinese Dictionary

3. 这件旗袍的颜色和花纹搭配得十分和谐。

   zhè jiàn qí​páo de yán​sè hé huā​wén dā​pèi de shí​fēn hé xié.

   The colors and patterns of this cheongsam are very harmoniously coordinated.

   Source: Dong Chinese Dictionary