8 sentences

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

5. 正经点儿，我们在谈正事呢。

   zhèng​jīng diǎn r, wǒ​men zài tán zhèng​shì ne.

   Be serious; we are talking about important business.

   Source: Dong Chinese Dictionary

6. 别在那儿胡闹了，我们在讨论正经事。

   bié zài nà​r hú​nào le, wǒ​men zài tǎo​lùn zhèng​jīng shì.

   Stop messing around; we are discussing serious matters.

   Source: Dong Chinese Dictionary

7. 那个孩子整天疯疯癫癫地跑来跑去，没个正经。

   nà​gè hái​zi zhěng​tiān fēng​feng​diān​diān de pǎo​lái​pǎo​qù, méi gè zhèng​jīng.

   That child runs around wildly all day, never being serious.

   Source: Dong Chinese Dictionary

8. 他作风正派，是个正经人。

   tā zuò​fēng zhèng​pài, shì gè zhèng​jīng rén.

   He is upright and a decent person.

   Source: Dong Chinese Dictionary