retrace
  回掃
  Re·trace v. t.
  1. To trace back, as a line.
  Then if the line of Turnus you retrace,
  He springs from Inachus of Argive race.   --Driden.
  2. To go back, in or over (a previous course); to go over again in a reverse direction; as, to retrace one's steps; to retrace one's proceedings.
  3. To trace over again, or renew the outline of, as a drawing; to draw again.
  ◄ ►
  retrace
       v 1: to go back over again; "we retraced the route we took last
            summer"; "trace your path" [syn: trace]
       2: reassemble mentally; "reconstruct the events of 20 years
          ago" [syn: reconstruct, construct]