scratch the surface
idiomPart ofscratch
scratch the surface — idiom
1. to deal with or understand only a small part of a subject or problem, leaving mo
1.idiom
Definition
to deal with or understand only a small part of a subject or problem, leaving most of it still to be explored
Example
The two-hour lecture only scratched the surface of the history of Chinese medicine.
Our investigation has barely scratched the surface of what went wrong at the factory.