track¹ ◙ noun 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。 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。 [mass noun] the sport of running on such a track • 径赛运动 [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。 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。 (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 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 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 [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 [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。 a lengthwise strip of magnetic tape containing one sequence of signals • 磁带音轨 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 5. US term for stream (in sense 3) • [美] 同stream（义项3） ◙ verb, [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。 (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。 [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。 (of a stylus) follow (a groove in a record) • （唱针在唱片纹道中）移动 [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. 摄影机最终跟踪着移开了。 (track something up)[N. Amer.] leave a trail of dirty footprints on a surface • [北美] 留下脏足印 (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（或碎块，雪） »the road salt I'd tracked in from the street. 从街上带进来的一串路盐脚印。 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
【IDIOMS】
◘ in one's tracks 1. [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 1. keep (or fail to keep) fully aware of or informed about • 保持（或失去）与…的联系 »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) 1. [informal] leave (for a place) • [非正式] 离开（去某地） ◘ off the beaten track --› seebeaten ◘ off the track 1. departing from the right course of thinking or behaviour • 出轨；离题 ◘ on the right (或 wrong) track 1. 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 1. 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 1. [informal] a poor or less prestigious part of town • [非正式] 城镇贫民窟
【语源】
1. 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
【PHR V】
◘ track someone/thing down 1. 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 1. (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 1. [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track² ◙ verb 1. [with obj. and adverbial of direction] tow (a canoe) along a waterway from the bank • 从岸上拉（独木舟）前进
【语源】
1. early 18th cent.: apparently from Dutch trekken 'to draw, pull, or travel'. The change in the vowel was due to association with track