| 释义 |
track
I. \ˈtrak\ noun
(-s)
Usage: often attributive
Etymology: Middle English trak, from Middle French trac, perhaps of Germanic origin; akin to Middle Dutch tracken, trecken to pull, haul, march, Middle Low German trecken to pull — more at trek
1.
a. : detectable evidence that something has passed (as the wake of a ship, a line of footprints, or a wheel rut)
b. : a rough path or way formed by or as if by repeated chance footfalls : trail
c. : a way or road constructed and maintained for a specific purpose: as
(1) : a path or course laid out especially for racing or exercise
< a cinder track >
< a half-mile track >
especially : a running track on which athletic races are contested — distinguished from field
(2) : a metal way for wheeled vehicles; specifically : one or more pairs of parallel lines of rails with the fastenings, ties, and sometimes ballast for a railroad, railway, or tramway
d. : a physical course by or on which something is recorded: as
(1) : the portion of the dial of a timepiece on which minutes or seconds are marked off between concentric bands
(2) : sound track
2.
a. : a footprint whether recent or fossil
< the huge track of an old bull elephant >
b. archaic : a visible mark or sign : vestige, trace
3.
a. : the course along which something moves
< the track of a storm >
< his track led him over mountains and through swamps >
< the track of a bullet >
— used interjectionally by a skier to warn anyone ahead of him on a trail or run; see pachisi illustration
b. : a way of life, conduct, or action : a course one adopts or follows : method, procedure
< afraid the new administration would choose a different track in foreign affairs >
c. : one of two or more courses of study covering the same general field usually at different levels of intensity and offered by a school to meet the diverse needs of particular groups of students
d. : the projection on the earth's surface of the path along which an aircraft has actually flown
4.
a. : a sequence of events or train of ideas : the order in which things happen or ideas come
< my pen goes in the track of my thoughts — Edmund Burke >
< the recurrent track of the years >
b. : the condition or fact of being aware of or in touch with something or some aspect (as the progress, count, extent, or worth) of something specified
< lost track of his friend's address >
< keeping careful track of the costs >
5. : any of several things or parts that make or are associated with the making of a track: as
a. : the width of a wheeled vehicle as measured from wheel to wheel and usually from the outside of the rims
b. : the tread of an automobile tire
c. : caterpillar tread
6. : the lower surface of the foot usually of a bird
7. Scotland : an odd spectacle : sight
8. : track-and-field sports; especially : those (as running or hurdling events) that are performed on the running track — distinguished from field event
•
- across the tracks
- in one's tracks
II. verb
(-ed/-ing/-s)
transitive verb
1.
a. : to follow the tracks or traces of : pursue by following marks made by (the pursued) : trail
< track a deer >
b. : to follow until caught up with — used with adverbs of direction (as down)
< track down a criminal >
2. : to mark out or beat down (a path or other course)
3.
a. : to ascertain and follow up through vestiges : trace
< track the course of an ancient wall >
b. : to follow or plot the moving path of (a target) with an instrument (as a gun, telescope, or searchlight) for the purpose of determining point of aim, path of interception, or future position
4. : to pass over : travel, traverse
< track a desert >
5.
a. : to make tracks upon
< new snow tracked by rabbits >
especially : to carry mud or other soiling agent on the feet and deposit it upon — often used with up
< don't track up my clean floor >
b. : to carry (as mud) on the feet and deposit in stepping
< tracked mud all over the house >
6. : to furnish with tracks or rails — often used in compounds
< single-track >
< double-track >
intransitive verb
1. : to make one's way : walk, go, travel — often used with around, about, or up
< got up late and tracked about for a while >
2.
a. : to follow a track in searching
< takes a woodsman to really track >
b. : to move a camera toward, beside, or away from a subject on a smooth moving trolley or tricycle
c. of a phonograph needle : to follow the groove undulations of a recording
3.
a. of a pair of wheels
(1) : to maintain a constant distance apart on the straightaway
(2) : to fit a track or rails
b. of a rear wheel of a vehicle : to accurately follow its corresponding fore wheel on a straightaway
c. : to be in perfect alignment with a corresponding part — used especially of a gear or cutter
4. : to leave tracks (as on a floor)
< tracking all over the house with his muddy boots >
III. noun
(-s)
Etymology: by alteration of tract (III)
chiefly dialect : extent; especially : an extent of land
IV. verb
(-ed/-ing/-s)
Etymology: probably modification (influenced by track) (II) of Dutch trekken to pull, from Middle Dutch trecken — more at track (n.)
transitive verb
1. : to draw along; especially : to tow (as a ship) from the shore
2. chiefly Scotland : to prepare (tea) by infusing : draw
intransitive verb
: to become towed : travel in a towed boat
V. noun
(-s)
chiefly Scotland : teapot
VI. noun
1. : band I,8 ; also : any of several sections into which a recording medium (as magnetic tape or a floppy disk) may be divided and on which material (as music or information) may be recorded
2. : material recorded especially on a track : recording 2a
< laugh track >
< several exuberant instrumental tracks >
VII. transitive verb
1. : to assign (students) to a curricular track
2. : to keep track of (as a trend) : follow
intransitive verb
: to move or progress in accordance with or be consistent with an expected or reasonable pattern |