Help us help you. By posting the year, make, model and engine near the beginning of your help request, followed by the symptoms (no start, high idle, misfire etc.) Along with any prevalent Diagnostic Trouble Codes, aka DTCs, other forum members will be able to help you get to a solution more quickly and easily!
Make sure you do as suggested and find the broken piece inside the line. Then order a new one on RockAuto. $30-40 and he'll be good to go. I tried to look it up but I'm guessing you have the year or model wrong as none of the lines I found looked like the ones in your pic.
Actually, I stand corrected. Looks like that particular line isn't available from RockAuto. You can get a new one from any of the online Honda dealers or pick up a used one on eBay.
I wouldn't try and repair it. It will likely leak after you waste a bunch of time on it.