4 sentences for 正经 (zhèng​jīng — proper)

1. 我还有正经工作要做。

   wǒ hái yǒu zhèng​jīng gōng​zuò yào zuò.

   I have actual work to do.

   Source: OpenSubtitles

2. 他已经三十岁了，却还没有正经的职业。

   tā yǐ​jīng sān​shí suì le, què hái méi​yǒu zhèng​jīng de zhí yè.

   He is already thirty, but he still doesn't have a steady job.

   Source: Dong Chinese Dictionary

3. 你应该找个正经的工作，别总是无所事事。

   nǐ yīng​gāi zhǎo gè zhèng​jīng de gōng​zuò, bié zǒng​shì wú​suǒ​shì​shì.

   You should find a proper job instead of always being idle.

   Source: Dong Chinese Dictionary

4. 你不能再这样鬼混下去了，得找个正经工作。

   nǐ bù néng zài zhè​yàng guǐ​hùn xià​qù le, děi zhǎo gè zhèng​jīng gōng​zuò.

   You can't keep messing around like this; you need to find a proper job.

   Source: Dong Chinese Dictionary