资料来源 : pyDict

广大的,扩大范围的,长期的

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

Extend \Ex*tend"\, v. t. [imp. & p. p. {Extended}; p. pr. & vb.
   n. {Extending}.] [L. extendere, extentum, extensum; ex out +
   tendere to stretch. See {Trend}.]
   1. To stretch out; to prolong in space; to carry forward or
      continue in length; as, to extend a line in surveying; to
      extend a cord across the street.

            Few extend their thoughts toward universal
            knowledge'.                           --Locke.

   2. To enlarge, as a surface or volume; to expand; to spread;
      to amplify; as, to extend metal plates by hammering or
      rolling them.

   3. To enlarge; to widen; to carry out further; as, to extend
      the capacities, the sphere of usefulness, or commerce; to
      extend power or influence; to continue, as time; to
      lengthen; to prolong; as, to extend the time of payment or
      a season of trail.

   4. To hold out or reach forth, as the arm or hand.

            His helpless hand extend.             --Dryden.

   5. To bestow; to offer; to impart; to apply; as, to extend
      sympathy to the suffering.

   6. To increase in quantity by weakening or adulterating
      additions; as, to extend liquors. --G. P. Burnham.

   7. (Eng. Law) To value, as lands taken by a writ of extent in
      satisfaction of a debt; to assign by writ of extent.

   {Extended letter} (Typog.), a letter, or style of type,
      having a broader face than is usual for a letter or type
      of the same height.

   Note: This is extended type.

   Syn: To increase; enlarge; expand; widen; diffuse. See
        {Increase}.

资料来源 : WordNet®

extended
     adj 1: relatively long in duration; tediously protracted; "a
            drawn-out argument"; "an extended discussion"; "a
            lengthy visit from her mother-in-law"; "a prolonged
            and bitter struggle"; "protracted negotiations" [syn:
            {drawn-out}, {lengthy}, {prolonged}, {protracted}]
     2: fully extended or stretched forth; "an extended telescope";
        "his extended legs reached almost across the small room";
        "refused to accept the extended hand" [ant: {unextended}]
     3: great in range or scope; "an extended vocabulary"; "surgeons
        with extended experience"; "extensive examples of picture
        writing"; "suffered extensive damage"; "a wide selection"
        [syn: {extensive}, {wide}]
     4: drawn out or made longer spatially; "Picasso's elongated Don
        Quixote"; "lengthened skirts are fashionable this year";
        "the extended airport runways can accommodate larger
        planes"; "a prolonged black line across the page" [syn: {elongated},
         {lengthened}, {prolonged}]
     5: beyond the literal or primary sense; "`hot off the press'
        shows an extended sense of `hot'"
     6: large in spatial extent or range; "an extensive Roman
        settlement in northwest England"; "extended farm lands"
        [syn: {extensive}]