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

    • noun: trace, plural noun: traces

    • 釋義

    動詞

    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 同義詞 vestige, sign, mark, indication, suggestion, ... 更多
    • 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.
    • a physical change in the brain presumed to be caused by a process of learning or memory.
    • 2. a very small quantity, especially one too small to be accurately measured his body contained traces of amphetamines trace quantities of PCBs
    • a slight indication or barely discernible hint of something just a trace of a smile 同義詞 bit, spot, speck, touch, hint, ... 更多
    • 3. 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
    • 4. 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.
    • 5. North American, West Indian a beaten path or small road; a track.
    • 6. the sum of the elements in the principle diagonal of a square matrix.