Where is the origin of this picture of Oracle Bone Inscriptions? How to explain it? The more detailed, the better.

This should consist of three parts. You can check the article on the combination of Oracle bones.

The interpretation is roughly like this:

Sacrificed wine (a kind of sacrifice, a kind of wine sacrifice), ... This is dedicated to Jia Shi and Baoyi (three words should be deleted) ... It was dedicated to C III, D III, ... I was dedicated to Ren III, Gui III (pictured), Dayi X, Dading X, Dajia X, Da Geng X, Liao (a kind of sacrifice,

It means: on the day of B, instead of Zhou Heping, offer a drink to the late king. Three newspapers, namely Yin newspaper, Bao C newspaper and Bao Ding newspaper.