正经事
zhèng​jīng​shì

serious business

正经事 (正經事) zhèng​jīng​shì
serious business noun
an important or serious matter (such as work-related or productive tasks)

我们还是先谈正经事吧。

wǒ​men hái​shi xiān tán zhèng​jīng​shì ba.

Let's talk about serious business first.

Frequency
Movie subtitles
2.27 per million appears in 1% of films

Sources
Definitions
CC-CEDICT
Frequency data
SUBTLEX-CH