3 sentences

1. 我想要开开心心地去上班。

   wǒ xiǎng​yào kāi​kāi​xīn​xīn de qù shàng​bān.

   I want to go to work feeling happy.

   Source: OpenSubtitles

2. 最重要的就是开开心心的。

   zuì zhòng​yào de jiù shì kāi​kāi​xīn​xīn de.

   The most important thing is to be happy.

   Source: OpenSubtitles

3. 你应该开开心心地去你丈夫家。

   nǐ yīng​gāi kāi​kāi​xīn​xīn de qù nǐ zhàng​fu jiā.

   You should go to your husband's place happily.

   Source: OpenSubtitles