1 sentence for 人事 (rén​shì — sexuality)

1. 他到了青春期，已经渐渐懂了人事。

   tā dào le qīng​chūn​qī, yǐ​jīng jiàn​jiàn dǒng le rén​shì.

   Now that he has reached puberty, he is gradually becoming aware of the ways of the world.

   Source: Dong Chinese Dictionary