levelling
 使成水平;測量高低


 Lev·el, v. t. [imp. & p. p. Leveled or Levelled; p. pr. & vb. n. Leveling or Levelling.]
 1. To make level; to make horizontal; to bring to the condition of a level line or surface; hence, to make flat or even; as, to level a road, a walk, or a garden.
 2. To bring to a lower level; to overthrow; to topple down; to reduce to a flat surface; to lower.
    And their proud structures level with the ground.   --Sandys.
    He levels mountains and he raises plains.   --Dryden.
 3. To bring to a horizontal position, as a gun; hence, to point in taking aim; to aim; to direct.
    Bertram de Gordon, standing on the castle wall, leveled a quarrel out of a crossbow.   --Stow.
 4. Figuratively, to bring to a common level or plane, in respect of rank, condition, character, privilege, etc.; as, to level all the ranks and conditions of men.
 5. To adjust or adapt to a certain level; as, to level remarks to the capacity of children.
 For all his mind on honor fixed is,
 To which he levels all his purposes.   --Spenser.


 level
      adj 1: having a horizontal surface in which no part is higher or
             lower than another; "a flat desk"; "acres of level
             farmland"; "a plane surface" [syn: flat, plane]
      2: not showing abrupt variations; "spoke in a level voice";
         "she gave him a level look"- Louis Auchincloss [syn: unwavering]
      3: being on a precise horizontal plane; "a billiard table must
         be level"
      4: oriented at right angles to the plumb; "the picture is
         level"
      5: of the score in a contest; "the score is tied" [syn: tied(p),
          even, level(p)]
      n 1: a position on a scale of intensity or amount or quality; "a
           moderate degree of intelligence"; "a high level of care
           is required"; "it is all a matter of degree" [syn: degree,
            grade]
      2: a relative position or degree of value in a graded group;
         "lumber of the highest grade" [syn: grade, tier]
      3: a specific identifiable position in a continuum or series or
         especially in a process; "a remarkable degree of
         frankness"; "at what stage are the social sciences?" [syn:
          degree, stage, point]
      4: height above ground; "the water reached ankle level"; "the
         pictures were at the same level"
      5: indicator that establishes the horizontal when a bubble is
         centered in a tube of liquid [syn: spirit level]
      6: a flat surface at right angles to a plumb line; "park the
         car on the level" [syn: horizontal surface]
      7: structure consisting of a room or set of rooms comprising a
         single level of a multilevel building; "what level is the
         office on?" [syn: floor, storey, story]
      8: an abstract place usually conceived as having depth; "a good
         actor communicates on several levels"; "a simile has at
         least two layers of meaning"; "the mind functions on many
         strata simultaneously" [syn: layer, stratum]
      v 1: aim at; "level criticism or charges at somebody"
      2: tear down so as to make flat with the ground; "The building
         was levelled" [syn: raze, rase, dismantle, {tear
         down, take down, pull down] [ant: raise]
      3: make level or straight; "level the ground" [syn: flush, {even
         out, even]
      4: direct into a position for use; "point a gun"; "He charged
         his weapon at me" [syn: charge, point]
      5: talk frankly with; lay it on the line; "I have to level with
         you"
      6: become level or even; "The ground levelled off" [syn: {level
         off]
      [also: levelling, levelled]


 levelling
      See level