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  1. trace

    • IPA[trās]

    美式

    • v.
      find or discover by investigation;find or describe the origin or development of
    • n.
      a mark, object, or other indication of the existence or passing of something;a line or pattern displayed by an instrument using a moving pen or a luminous spot on a screen to show the existence or nature of something that is being investigated.
    • noun: trace, plural noun: traces

    • verb: trace, 3rd person present: traces, gerund or present participle: tracing, past tense: traced, past participle: traced

    • 釋義
    • 相關詞
    • v.
      動詞
    • 1. find or discover by investigation:

      police are trying to trace a white van seen in the area

    • 2. find or describe the origin or development of:

      Bob's book traces his flying career with the Marines

    • 3. follow or mark the course or position of (something) with one's eye, mind, or finger:

      through the binoculars, I traced the path I had taken the night before

    • 4. take (a particular path or route):

      a tear traced a lonely path down her cheek

    • 5. copy (a drawing, map, or design) by drawing over its lines on a superimposed piece of transparent paper:

      trace a map of the world onto a large piece of paper

    • 6. draw (a pattern or line), especially with one's finger or toe:

      she traced a pattern in the dirt with the toe of her shoe

    • 7. give an outline of:

      the article traces out some of the connections between education, qualifications, and the labor market

    • n.
      名詞
    • 1. a mark, object, or other indication of the existence or passing of something:

      remove all traces of the old adhesive

      the aircraft disappeared without trace

    • 2. a line or pattern displayed by an instrument using a moving pen or a luminous spot on a screen to show the existence or nature of something that is being investigated.
    • 3. a physical change in the brain presumed to be caused by a process of learning or memory.
    • 4. a very small quantity, especially one too small to be accurately measured:

      his body contained traces of amphetamines

      trace quantities of PCBs

    • 5. a slight indication or barely discernible hint of something:

      just a trace of a smile

    • 6. a procedure to investigate the source of something, such as the place from which a telephone call was made, or the origin of an error in a computer program:

      we've got a trace on the call

    • 7. a line which represents the projection of a curve or surface on a plane or the intersection of a curve or surface with a plane.
    • 8. a beaten path or small road; a track.
    • 9. the sum of the elements in the principle diagonal of a square matrix.
    • n. a chemical element present only in minute amounts in a particular sample or environment.

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    • n. a chemical element present only in minute amounts in a particular sample or environment.

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    • n. a hypothetical permanent change in the nervous system brought about by memorizing something; an engram.

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    • n. a hypothetical permanent change in the nervous system brought about by memorizing something; an engram.

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    • n. a fossil of a footprint, trail, burrow, or other trace of an animal rather than of the animal itself.

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    • n. a trace element required for nutrition:

    • selenium and other trace minerals are vital to good health

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    • 更多解釋
    • IPA[treɪs]

    英式

    • v.
      find or discover by investigation:
    • police are trying to trace a white van seen in the area
    • n.
      a mark, object, or other indication of the existence or passing of something:
    • remove all traces of the old adhesive

      the aircraft disappeared without trace

    Powered by Oxford Dictionary of English 3e

    • IPA[treɪs]

    英式

    • n.
      each of the two side straps, chains, or ropes by which a horse is attached to a vehicle that it is pulling.

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    • IPA[trās]

    美式

    • n.
      each of the two side straps, chains, or ropes by which a horse is attached to a vehicle that it is pulling.

    Powered by New Oxford American Dictionary

  2. 知識+

    • trace和track和trail的差別~20點

      trace和track和trail的差別 1. trace 與 track 在很多地方都是通用的 2. trace 多用在抽象上的與精神上的 追隨...

    • trace theory

      ...所創。他的理論由四個重要的基礎來支援:(1)心理學中記憶的回溯理論(trace theory)---記憶的聯想或回溯可藉由口頭覆誦或搭配手勢、肢體動作來協助達成...

    • 1題選擇題 date/trace back to

      ...two halves: (1) The difference between "trace back" and "date back" For "trace..., it is talking about TRACING BACK the history, you thus shall choose "4)"...