The company offered little 'by way of explanation' for the delays. [=as a way of explaining why there were delays]
Some of the more technical terms need/require 'explanation'. [=they need to be explained]
a likely/probable/possible/plausible 'explanation of' how the accident occurred
(..) Dumb fox. You know you love me. Do I know that? Yes. Yes, I do. Sir, you were going miles per hour, I hope you have a good explanation. Flash, Flash, Hundred Yard Dash! Nick! Spanish By.SFNasty English and Resync by. PennyHamada Corrected by Shincosutan. (..)2016 Zootopia