trace /ˈtres/
 痕跡,蹤跡,微量,跡線,□繩(vt.)追蹤,回溯,描繪(vi.)上溯,沿路走


 trace /ˈtres/ 名詞
 痕跡,微量,示蹤,痕量,極微量,掃描,探測,跡線,(脈)跡


 trace
 追蹤


 trace
 追蹤


 Trace n.
 1. One of two straps, chains, or ropes of a harness, extending from the collar or breastplate to a whiffletree attached to a vehicle or thing to be drawn; a tug.
 2. Mech. A connecting bar or rod, pivoted at each end to the end of another piece, for  transmitting motion, esp. from one plane to another; specif., such a piece in an organ-stop action to transmit motion from the trundle to the lever actuating the stop slider.


 Trace, n.
 1. A mark left by anything passing; a track; a path; a course; a footprint; a vestige; as, the trace of a carriage or sled; the trace of a deer; a sinuous trace.
 2. Chem. & Min. A very small quantity of an element or compound in a given substance, especially when so small that the amount is not quantitatively determined in an analysis; -- hence, in stating an analysis, often contracted to tr.
 3. A mark, impression, or visible appearance of anything left when the thing itself no longer exists; remains; token; vestige.
 The shady empire shall retain no trace
 Of war or blood, but in the sylvan chase.   --Pope.
 4. Descriptive Geom. & Persp. The intersection of a plane of projection, or an original plane, with a coordinate plane.
 5. Fort. The ground plan of a work or works.
 Syn.-Vestige; mark; token. See Vestige.


 Trace, v. t. [imp. & p. p. traced p. pr. & vb. n. tracing.]
 1. To mark out; to draw or delineate with marks; especially, to copy, as a drawing or engraving, by following the lines and marking them on a sheet superimposed, through which they appear; as, to trace a figure or an outline; a traced drawing.
    Some faintly traced features or outline of the mother and the child, slowly lading into the twilight of the woods.   --Hawthorne.
 2. To follow by some mark that has been left by a person or thing which has preceded; to follow by footsteps, tracks, or tokens.
    You may trace the deluge quite round the globe.   --T. Burnet.
 I feel thy power . . . to trace the ways
 Of highest agents.   --Milton.
 3. Hence, to follow the trace or track of.
    How all the way the prince on footpace traced.   --Spenser.
 4. To copy; to imitate.
 That servile path thou nobly dost decline,
 Of tracing word, and line by line.   --Denham.
 5. To walk over; to pass through; to traverse.
    We do tracethis alley up and down.   --Shak.


 Trace, v. i. To walk; to go; to travel. [Obs.]
    Not wont on foot with heavy arms to trace.   --Spenser.

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 trace
      n 1: a just detectable amount; "he speaks French with a trace of
           an accent" [syn: hint, suggestion]
      2: an indication that something has been present; "there wasn't
         a trace of evidence for the claim"; "a tincture of
         condescension" [syn: vestige, tincture, shadow]
      3: a suggestion of some quality; "there was a touch of sarcasm
         in his tone"; "he detected a ghost of a smile on her face"
         [syn: touch, ghost]
      4: drawing created by tracing [syn: tracing]
      5: either of two lines that connect a horse's harness to a
         wagon or other vehicle or to a whiffletree
      6: a visible mark (as a footprint) left by the passage of
         person or animal or vehicle
      v 1: follow, discover, or ascertain the course of development of
           something; "We must follow closely the economic
           development is Cuba" ; "trace the student's progress"
           [syn: follow]
      2: make a mark or lines on a surface; "draw a line"; "trace the
         outline of a figure in the sand" [syn: draw, line, describe,
          delineate]
      3: to go back over again; "we retraced the route we took last
         summer"; "trace your path" [syn: retrace]
      4: pursue or chase relentlessly; "The hunters traced the deer
         into the woods"; "the detectives hounded the suspect until
         they found the him" [syn: hound, hunt]
      5: discover traces of; "She traced the circumstances of her
         birth"
      6: make one's course or travel along a path; travel or pass
         over, around, or along; "The children traced along the
         edge of the drak forest"; "The women traced the pasture"
      7: copy by following the lines of the original drawing on a
         transparent sheet placed upon it; make a tracing of;
         "trace a design"; "trace a pattern"
      8: read with difficulty; "Can you decipher this letter?"; "The
         archeologist traced the hieroglyphs" [syn: decipher]