1
- a rough path or minor road, typically one beaten by use rather than constructed（尤指踩踏出来而非铺设的）小道, 小径：
follow the track to the farm
顺着这条小道去农场
a forest track.
林中小径。
1.1
- a prepared course or circuit for athletes, horses, motor vehicles, bicycles, or dogs to race on跑道, 车道, 赛道：
a Formula One Grand Prix track.
一级方程式汽车大奖赛的赛道。
1.2
- mass noun the sport of running on such a track径赛运动。
1.3
- （一般作tracks）a mark or line of marks left by a person, animal, or vehicle in passing足迹, 踪迹, 车辙：
he followed the tracks made by the police cars in the snow.
他跟随着警车在雪上留下的痕迹。
1.4
- the course or route followed by someone or something (used especially in talking about their pursuit by others)（被跟踪的）路线：
I didn't want the Russians on my track.
我不想有俄国人跟踪我。
1.5
- figurative a course of action; a way of proceeding〈喻〉行动方针; 行为方式：
defence budgeting and procurement do not move along different tracks from defence policy as a whole.
总的来说, 防务预算及采购并不会背离总的防务政策。
2
- a continuous line of rails on a railway铁路轨道, 线路。
2.1
- a metal or plastic strip or rail from which a curtain or spotlight may be hung or fitted窗帘轨; 活动投射灯的滑轨。
2.2
- a continuous articulated metal band around the wheels of a heavy vehicle such as a tank or bulldozer, intended to facilitate movement over rough or soft ground（坦克、推土机的）履带。
2.3
- Electronics a continuous line of copper or other conductive material on a printed circuit board, used to connect parts of a circuit【电子】（印刷电路板的）印制线。
2.4
- Sailing a strip on the mast, boom, or floor of a yacht along which a slide attached to a sail can be moved, used to adjust the position of the sail【航海】（校正风帆位置的）滑条。
3
- a section of a record, compact disc, or cassette tape containing one song or piece of music（唱片, 光盘, 磁带上的）歌曲, 音乐：
the CD contains early Elvis Presley tracks.
这张光盘包括了埃尔维斯·普雷斯利的早期歌曲。
ORIGIN: originally denoting a groove on a gramophone record.
3.1
- a lengthwise strip of magnetic tape containing one sequence of signals磁带音轨。
3.2
- the soundtrack of a film or video电影（或录像）的声迹。
4
- the transverse distance between a vehicle's wheels（机动车辆轮胎的横向）轮距。
with obj.
1
- follow the course or trail of (someone or something), typically in order to find them or note their location at various points跟踪, 追踪：
secondary radars that track the aircraft in flight
跟踪飞行着的飞机的二次雷达
he tracked Anna to her room.
他跟踪安娜到了她房间。
1.1
- figurative follow and note the course or progress of〈喻〉追随（某事）的进程：
City have been tracking the striker since the summer.
自夏天起, 伦敦城一直都在关注罢工者。
1.2
- no obj., with adverbial of direction follow a particular course沿着特定路线走：
the storm was tracking across the ground at 30 mph.
风暴以时速30英里横扫大地。
1.3
- (of a stylus) follow (a groove in a record)（唱针在唱片纹道中）移动。
1.4
- no obj., with adverbial of direction(of a film or television camera) move in relation to the subject being filmed（电影, 电视摄影机）跟踪拍摄：
the camera eventually tracked away.
摄影机最终跟着（镜头）移开了。
ORIGIN: with reference to early filming when a camera was mobile by means of a track.
1.5
track something up
N. Amer. leave a trail of dirty footprints on a surface〈北美〉留下脏足印。
1.6
track something in
N. Amer. leave a trail of dirt, debris, or snow from one's feet〈北美〉（从脚上）掉下一串灰尘（或碎块, 雪）：the road salt I'd tracked in from the street.
我从街上带进来的一串路面防滑盐脚印。
2
- no obj.(of wheels) run so that the back ones are exactly in the track of the front ones（前后车轮）轨迹吻合地移动。
3
- no obj. Electronics (of a tunable circuit or component) vary in frequency in the same way as another circuit or component, so that the frequency difference between them remains constant【电子】统调。
短语
in one's tracks
- informal where one or something is at that moment; suddenly〈非正式〉就地, 当场; 突然：
Turner immediately stopped dead in his tracks.
特纳立即就地停住。
keep （或lose）track of
- keep (or fail to keep) fully aware of or informed about追踪（或失去）关于…的消息; （未能）一直了解（或关注）：
she had lost all track of time and had fallen asleep.
她完全不知道时间, 并且已经入睡了。
make tracks (for)
- informal leave (for a place)〈非正式〉离开（去某地）。
off the beaten track
- 见BEATEN.
off the track
- departing from the right course of thinking or behaviour出轨; 离题。
on the right （或wrong）track
- acting or thinking in a way that is likely to result in success (or failure)循着正确（或错误）的路线：
we are on the right track for continued growth.
我们走的是持续增长的正确路线。
on track
- acting or thinking in a way that is likely to achieve what is required在正道上; 未离题（或目标）; 正确：
formulas for keeping the economy on track.
保持经济正确发展的方案。
the wrong side of the tracks
- informal a poor or less prestigious part of town〈非正式〉城镇贫民窟。
- ORIGIN: with reference to the railway tracks of American towns, once serving as a line of demarcation between rich and poor quarters.
词源
late 15th cent. （in the sense 'trail, marks left behind'）： the noun from Old French trac, perhaps from Low German or Dutch trek 'draught, drawing'; the verb （current senses dating from the mid 16th cent.） from French traquer or directly from the noun.
短语动词
track someone/thing down
- find someone or something after a thorough or difficult search（经过彻底、复杂的搜查而）跟踪找到; 追查到; 搜寻到。
track up
- (of a horse at the trot) create sufficient impulsion in its hindquarters to cause the hind feet to step on to or slightly ahead of the former position of the forefeet（小跑中的马）使马身后部有足够的冲力, 后蹄能踏上或超过前蹄曾踩踏过的地方。
track (square) with
- Austral. informal carry on a romantic or sexual relationship with〈澳, 非正式〉保持浪漫关系; 保持性关系。