2 sentences for 正经 (zhèng​jing)

1. 我总是太正经了。

   wǒ zǒng​shì tài zhèng​jing le.

   I'm always too serious.

   Source: OpenSubtitles

2. 她觉得自己像个正经的女商人。

   tā jué​de zì​jǐ xiàng ge zhèng​jing de nǚ shāng​rén.

   She felt like a proper businesswoman.

   Source: CCMatrix