资料来源 : pyDict

向前,在前,提前,领先

资料来源 : Webster's Revised Unabridged Dictionary (1913)

Ahead \A*head"\, adv. [Pref. a- + head.]
   1. In or to the front; in advance; onward.

            The island bore but a little ahead of us.
                                                  --Fielding.

   2. Headlong; without restraint. [Obs.] --L'Estrange.

   {To go ahead}.
      (a) To go in advance.
      (b) To go on onward.
      (c) To push on in an enterprise. [Colloq]

   {To get ahead of}.
      (a) To get in advance of.
      (b) To surpass; to get the better of. [Colloq.]

资料来源 : WordNet®

ahead
     adj : having the leading position or higher score in a contest;
           "he is ahead by a pawn"; "the leading team in the
           pennant race" [syn: {ahead(p)}, {in the lead}, {leading}]

ahead
     adv 1: at or in the front; "I see the lights of a town ahead"; "the
            road ahead is foggy"; "staring straight ahead"; "we
            couldn't see over the heads of the people in front";
            "with the cross of Jesus marching on before" [syn: {in
            front}, {before}]
     2: toward the future; forward in time; "I like to look ahead in
        imagination to what the future may bring"; "I look forward
        to seeing you" [syn: {forward}] [ant: {back}, {back}]
     3: in a forward direction; "go ahead"; "the train moved ahead
        slowly"; "the boat lurched ahead"; "moved onward into the
        forest"; "they went slowly forward in the mud" [syn: {onward},
         {onwards}, {forward}, {forwards}, {forrader}]
     4: ahead of time; in anticipation; "when you pay ahead (or in
        advance) you receive a discount"; "We like to plan ahead";
        "should have made reservations beforehand" [syn: {in
        advance}, {beforehand}]
     5: to a more advanced or advantageous position; "a young man
        sure to get ahead"; "pushing talented students ahead"
     6: to a different or a more advanced time (meaning advanced
        either toward the present or toward the future); "moved
        the appointment ahead from Tuesday to Monday"; "pushed the
        deadline ahead from Tuesday to Wednesday"
     7: leading or ahead in a competition; "the horse was three
        lengths ahead going into the home stretch"; "ahead by two
        pawns"; "our candidate is in the lead in the polls"; "way
        out front in the race"; "the advertising campaign put them
        out front in sales" [syn: {out front}, {in the lead}]