Up on and Walk through

Up on adjective - Being up to particular standard or level especially in being up to date in knowledge.

Walk through and up on are semantically related. In some cases you can use "Walk through" instead a verb "Up on".

Walk through verb - Perform in a perfunctory way, as for a first rehearsal.

Up on and walk through are semantically related. Sometimes you can use "Up on" instead a verb "Walk through".