1. scratch the surface
We have barely begun to scratch the surface of the possibilities of new technology 2. We had only two weeks to tour the country, which was hardly enough time to scratch the surface.
They scratch the surface and never think to look within.
2. cut some corners
FYI, to pay for this vacation, we need to cut some corners.
Englisch Wort "zrobić coś po łebkach"(cut some corners) tritt in Sätzen auf:
Common Idioms