Idiom
take up somethingtake up (something)
1.
to begin to do something.
She worked for a TV company, then took up writing and produced a series of best-sellers.I didn't know you smoked — when did you take it up?
2.
to consider or deal with something.
A group has taken up the cause of preserving open spaces in our town.The coach said he couldn't practice with the team, and that he needed to take the matter up with Principal Hall.
3.
to shorten a piece of clothing.
The skirt dragged on the floor, so I took it up.I need to have these pants taken up.