资料来源 : pyDict

事先,提前

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

Beforehand \Be*fore"hand`\, a.
   In comfortable circumstances as regards property; forehanded.

         Rich and much beforehand.                --Bacon.

Beforehand \Be*fore"hand`\, adv. [Before + hand.]
   1. In a state of anticipation ore preoccupation; in advance;
      -- often followed by with.

            Agricola . . . resolves to be beforehand with the
            danger.                               --Milton.

            The last cited author has been beforehand with me.
                                                  --Addison.

   2. By way of preparation, or preliminary; previously;
      aforetime.

            They may be taught beforehand the skill of speaking.
                                                  --Hooker.

资料来源 : WordNet®

beforehand
     adj : being ahead of time or need; "gave advance warning"; "was
           beforehand with her report" [syn: {advance(a)}, {beforehand(p)}]
     adv : 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: {ahead}, {in advance}]