U1N1D2O1S1
6 points
UNDOS is validvalid
UNDO, a computer feature that allows the user to reverse the effect of the last action [n]
UNDO, a computer feature that allows the user to reverse the effect of the last action [n]
UNDO, a computer feature that allows the user to reverse the effect of the last action [n]
UNDO, a computer feature that allows the user to reverse the effect of the last action [n]