('computers') Will the program let me 'undo' a change if I make a mistake?
I can't 'undo' [='untie'] this knot.
The damage cannot be 'undone'.
(..) - Let's get you out of here. Okay, stay very still. All right. Okay, I got you. Okay, look. I'll undo the belt. You hold on... ...to that seat in front of you. On three? - All right. - Okay, one, two, three. See how easy that was? (..)2012 The Amazing Spider-Man