赶工

赶工	gǎn gōng	to work against the clock / to hurry with work to get it done in time
赶	gǎn	to overtake; to catch up with / to hurry; to rush / to try to catch (the bus etc) / to drive (cattle etc) forward; to drive (sb) away / to avail oneself of (an opportunity) / until; by (a certain time)
工	gōng	work / worker / skill / profession / trade / craft / labor