scratch the surface (of something)
成語所屬單字scratch
scratch the surface (of something) — 慣用語
1. To only begin to deal with or understand a small part of a larger issue or topic
1.慣用語
釋義
僅觸及皮毛
To only begin to deal with or understand a small part of a larger issue or topic.
例句
The report only scratched the surface of the pollution problem.
In our short visit, we just scratched the surface of Tokyo's culture.