| 单词 | trace |
| 释义 | Word Frequency trace 1(treɪs) noun 1. a mark or other sign that something has been in a place; vestige 2. a tiny or scarcely detectable amount or characteristic 3. a footprint or other indication of the passage of an animal or person 4. any line drawn by a recording instrument or a record consisting of a number of such lines 5. something drawn, such as a tracing 6. mainly US a beaten track or path 7. the postulated alteration in the cells of the nervous system that occurs as the result of any experience or learning See also memory trace, engram 8. geometry the intersection of a surface with a coordinate plane 9. mathematics the sum of the diagonal entries of a square matrix 10. linguistics a symbol inserted in the constituent structure of a sentence to mark the position from which a constituent has been moved in a generative process 11. meteorology an amount of precipitation that is too small to be measured 12. archaic a way taken; route verb 13. (transitive) to follow, discover, or ascertain the course or development of (something) to trace the history of China 14. (transitive) to track down and find, as by following a trail 15. to copy (a design, map, etc) by drawing over the lines visible through a superimposed sheet of transparent paper or other material 16. (transitive; often foll by out) a. to draw or delineate a plan or diagram of she spent hours tracing the models one at a time b. to outline or sketch (an idea, policy, etc) he traced out his scheme for the robbery 17. (transitive) to decorate with tracery 18. (transitive) to imprint (a design) on cloth, etc 19. (usually foll by back) to follow or be followed to source; date back his ancestors trace back to the 16th century 20. archaic to make one's way over, through, or along (something) Derived forms traceable (ˈtraceable) adjective traceability (ˌtraceaˈbility) or traceableness (ˈtraceableness) noun traceably (ˈtraceably) adverb traceless (ˈtraceless) adjective tracelessly (ˈtracelessly) adverb Word origin C13: from French tracier, from Vulgar Latin tractiāre (unattested) to drag, from Latin tractus, from trahere to dragWord Frequency trace 2(treɪs) noun 1. either of the two side straps that connect a horse's harness to the swingletree 2. angling a length of nylon or, formerly, gut attaching a hook or fly to a line 3. kick over the traces Word origin C14 trais, from Old French trait, ultimately from Latin trahere to drag |
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