scratch the surface

Verb

idiomatic

(idiomatic) To barely begin; to see or do only a fraction of what is possible.

Japanese Meaning

ほんの少ししか手をつけていない、ほんの一部だけを試みる / 物事の本質や全体の一端をかすめるだけで、深く掘り下げない

We have only begun to scratch the surface of what this technology can do.

この技術が何を成し得るかについては、まだほんの入り口に触れただけだ。

Sense（1）

(idiomatic) To barely begin; to see or do only a fraction of what is possible.

This beginners' course only scratches the surface of the subject.

scratches the surface

（ present singular third-person ）

scratching the surface

（ participle present ）

scratched the surface

（ participle past ）

scratched the surface

（ past ）