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单词 tracker
释义

WordReference Random House Learner's Dictionary of American English © 2024
track /træk/USA pronunciation   n. 
  1. Rail Transport[countable] a pair of parallel lines of rails on which a railroad train, trolley, or the like runs.
  2. evidence that something has passed:[countable]the tracks of my tears.
  3. Usually, tracks. [plural] marks left by an animal, person, or vehicle:[countable]You can see the tracks where the deer crossed the stream.
  4. a path made by or as if by the feet of people or animals;
    trail:[countable]a track through the woods to the river.
  5. a line of travel or of motion:[countable]The track of the spy satellite takes it over our airfield in just a few moments.
  6. Sport
    • [countable] a course laid out for running or racing:The school spent millions on a new track.
    • [uncountable] the group of sports performed on such a course, as running or hurdling.
  7. [countable]
    • Sound Reproductionone of the parallel recording surfaces extending along the length of a magnetic tape.
    • Sound Reproductionband2 (def. 5).
    • Sound Reproductionmaterial recorded on a track (def. 7a) that is combined with other parts of a musical recording to produce a final version.
  8. Computing[countable] one of a number of rings on the surface of a floppy disk along which data are recorded.
  9. Slang Terms tracks, [plural] needle marks on the skin of a drug user, caused by injections.
  10. Furniture[countable] a metal strip along which something, as a curtain, can be mounted or moved.
  11. Education a program of study or the level of courses to which a student is assigned on the basis of skill or need;
    an academic course or path:[countable]the college track.

v. [~ + object]
  1. to follow or pursue the track of:The dogs tracked the fox to its hole.
  2. to leave footprints on:to track the floor with muddy shoes.
  3. to make a trail of footprints with (dirt, etc.):to track mud on the floor.
  4. Aeronauticsto follow the course of (an aircraft, etc.), as by radar, etc.:The gunner tracked the incoming fighter.
  5. to follow the course of progress of:We have been tracking your progress.
  6. track down, to pursue until caught or captured;
    follow: [~ + object + down]I promised to track Smith down and kill him.[~ + down + object]I promised to track down the traitor and kill him.
Idioms
  1. Idioms keep track, to remain aware;
    keep informed: [no object]There are too many things to do; I can't keep track.[~ + of + object]I can't keep track of all those employees.
  2. Idioms lose track, to fail to keep informed or aware: [no object]I keep losing track; are we on page 1055 or 1056?[~ + of + object]I lost track of how many disks my computer destroyed.
  3. Idioms make tracks, [Informal.]to hurry.
  4. Idioms off the track, departing from the subject under discussion:We're off the track again; we have to come back to the topic.
  5. Idioms on the track of, in search or pursuit of;
    close upon:The FBI is on the track of the gang.
  6. Idioms the wrong (or right ) side of the tracks, the unfashionable, or lower-status (or fashionable, or higher-status) part of a city:He was a boy from the wrong side of the tracks.

track•a•ble, adj. 
track•er, n. [countable]

WordReference Random House Unabridged Dictionary of American English © 2024
track  (trak),USA pronunciation n. 
  1. a structure consisting of a pair of parallel lines of rails with their crossties, on which a railroad train, trolley, or the like runs.
  2. a wheel rut.
  3. evidence, as a mark or a series of marks, that something has passed.
  4. Usually, tracks. footprints or other marks left by an animal, person, or vehicle:a lion's tracks; car tracks.
  5. a path made or beaten by or as if by the feet of people or animals;
    trail:to follow the track of a murderer.
  6. a line of travel or motion:the track of a bird.
  7. a course or route followed.
  8. a course of action, conduct, or procedure:on the right track to solve the problem.
  9. a path or course made or laid out for some particular purpose.
  10. a series or sequence of events or ideas.
  11. something associated with making a track, as the wheel span of a vehicle or the tread of a tire.
  12. a caterpillar tread.
  13. [Sports.]
    • a course laid out for running or racing.
    • the group of sports performed on such a course, as running or hurdling, as distinguished from field events.
    • both track and field events as a whole.
  14. [Recording.]
    • a band of recorded sound laid along the length of a magnetic tape.
    • band2 (def. 6).
    • an individual song or segment of a recording:a title track.
    • a discrete, separate recording that is combined with other parts of a musical recording to produce the final aural version:a special rhythm track added to the basic track.
  15. [Auto.]the distance between the centers of the treads of either the front or rear wheels of a vehicle.
  16. Computinga data-recording path on a storage medium, as a magnetic disk, tape, or drum, that is accessible to a read-write head in a given position as the medium moves past.
  17. tracks, [Slang.]needle marks on the arm, leg, or body of a drug user caused by habitual injections.
  18. Cinemasound track.
  19. a metal strip or rail along which something, as lighting or a curtain, can be mounted or moved.
  20. Educationa study program or level of curriculum to which a student is assigned on the basis of aptitude or need;
    academic course or path.
  21. in one's tracks, [Informal.]in the spot in which one is or is standing at the moment:He stopped dead in his tracks, listening for the sound to be repeated.
  22. keep track, to be aware;
    keep informed:Have you been keeping track of the time?
  23. lose track, to fail to keep informed;
    neglect to keep a record:He soon lost track of how much money he had spent.
  24. make tracks, [Informal.]to go or depart in a hurry:to make tracks for the store before closing time.
  25. off the track, departing from the objective or the subject at hand;
    astray:He can't tell a story without getting off the track.
  26. on the track of, in search or pursuit of;
    close upon:They are on the track of a solution to the problem.
  27. on the wrong or right side of the tracks, from a poor or wealthy part of a community or of society:born on the wrong side of the tracks.

v.t. 
  1. to follow or pursue the track, traces, or footprints of.
  2. to follow (a track, course, etc.).
  3. to make one's way through;
    traverse.
  4. to leave footprints on (often fol. by up or on):to track the floor with muddy shoes.
  5. to make a trail of footprints with (dirt, snow, or the like):The dog tracked mud all over the living room rug.
  6. to observe or monitor the course or path of (an aircraft, rocket, satellite, star, etc.), as by radar or radio signals.
  7. to observe or follow the course of progress of;
    keep track of.
  8. to furnish with a track or tracks, as for railroad trains.
  9. [Railroads.]to have (a certain distance) between wheels, runners, rails, etc.

v.i. 
  1. to follow or pursue a track or trail.
  2. to run in the same track, as the wheels of a vehicle.
  3. to be in alignment, as one gearwheel with another.
  4. to have a specified span between wheels or runners:The car's wheels track about five feet.
  5. [Motion Pictures, Television.]dolly (def. 12).
  6. Sound Reproduction[Recording.]to follow the undulations in the grooves of a phonograph record.
  7. track down, to pursue until caught or captured;
    follow:to track down a killer.
  • Old Norse trathk trodden spot; compare Norwegian trakke to trample; akin to tread
  • Middle French trac, perh.
  • late Middle English trak (noun, nominal) 1425–75
track ′a•ble, adj. 
track′a•bil ′i•ty, n. 
track ′er, n. 
    • 3.See corresponding entry in Unabridged trace, record, spoor.
    • 28.See corresponding entry in Unabridged stalk, hunt.
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更新时间：2024/11/11 1:31:31