To search for and explore the profound or subtle parts of a subject and then extract its essential points; often used to describe a piece of writing that is insightful and concise.

recap of previous events or plot points, especially at the beginning of a television episode or serialized story

The annotated catalog of the Complete Library in the Four Branches of Literature, compiled in 200 volumes by [[纪昀|紀昀|ji4 yun2]] and others during the Qing dynasty; it provides summaries and critical evaluations of nearly 10,000 works.

short form for the Annotated Bibliography of the Complete Library in the Four Sections

to extract the profound meaning and summarize the main points of a text