1 sentence for 人情 (rén​qíng — social relations)

1. 他历经社会磨炼，已经深谙人情世故。

   tā lì​jīng shè​huì mó​liàn, yǐ​jīng shēn'ān rén​qíng shì​gù.

   Having gone through the trials of society, he is well-versed in the ways of the world.

   Source: Dong Chinese Dictionary