1
general::
Phrase(s): impress something (up)on something
to press something into the surface of something, leaving a mark. • The ribbing of my socks impressed a pattern upon my calves. • The heavy vase impressed its outline on the pine tabletop., Phrase(s): impress something (up)on someone
to make someone fully aware of something. (Upon is formal and less commonly used than on.) • You must impress these facts upon everyone you meet. • She impressed its importance on me.
McGrawhill's American Idioms And Phrasal Verbs