单词 | tracker |
释义 | track1 of 2noun ˈtrak 1 : a footprint whether recent or fossil the huge track of a dinosaur 2 a : detectable evidence (such as the wake of a ship, a line of footprints, or a wheel rut) that something has passed b : a path made by or as if by repeated footfalls : trail c : a course laid out especially for racing d : the parallel rails of a railroad e(1) : material recorded especially on or as if on a track instrumental tracks a bonus commentary track on a DVD (2) : one of a series of parallel or concentric paths along which material (such as music or information) is recorded (as on a phonograph record or magnetic tape) (3) : a group of grooves on a phonograph record containing recorded sound f : a usually metal way (such as a groove) serving as a guide (as for a movable lighting fixture) 3 a : a sequence of events : a train of ideas : succession b : an awareness of a fact, progression, or condition keep track of the costs lose track of the time 4 : track-and-field sports especially : those performed on a running track 5 a : the course along which something moves or progresses b : a way of life, conduct, or action c : one of several curricula of study to which students are assigned according to their needs or levels of ability d : the projection on the earth's surface of the path along which something (such as a missile or an airplane) has flown 6 a : the width of a wheeled vehicle from wheel to wheel and usually from the outside of the rims b : the tread of an automobile tire c : either of two endless belts on which a tracklaying vehicle travels trackless ˈtrak-ləs adjective track 2 of 2verb tracked; tracking; tracks transitive verb 1 a : to follow the tracks or traces of : trail b : to search for by following evidence until found track down the source 2 a : to follow by vestiges : trace b : to observe or plot the moving path of (something, such as a spacecraft or missile) often instrumentally 3 a : to carry (mud or other material) on the feet and deposit tracking mud into the kitchen b : to make tracks upon 4 : to keep track of (something, such as a trend) : follow 5 : to travel over : traverse track a desert intransitive verb 1 : travel a comet tracking eastward 2 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 follow accurately the corresponding fore wheel on a straightaway c of a phonograph needle : to follow the groove undulations of a recording 3 : to leave tracks (as on a floor) tracker noun tracker nounas in tracer Synonyms & Similar Words Relevance
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