take up on

Englanti

take someone up on something – hyväksyä jonkun tarjous, ehdotus, kutsu jms.
He didn't take me up on my offer.

I'll take you up on your most kind invitation.

What an absurd suggestion! No one takes him up on it.
vaatia joltakulta selitystä t. perusteluja jollekin (aiemmin sanotulle t. tehdylle)
I'm going take him up on what he said.