"Hey, repairman. Can you fix this right now?" "You mean, you guys’ relationship? Sorry. No can do."
Discipline is the reason why you're able to do a repair on things. It takes a lot of time to fix something, and takes a lot of studying. That discipline is what you need, and you have it. Thus, it was repaired!
This is a jukugo word, which usually means on'yomi readings from the kanji. If you know the readings of your kanji you'll know how to read this as well.