track

track /træk/ I. n. 1.［c］足迹：We saw wild animals’ tracks near the cave. 在岩洞附近我们看到了野生动物的足迹。 2.［c］&［u］(火车等的)轨道：The train left the track. 火车出轨了。Passengers are requested not to walk across the tracks. 旅客不允许横过铁道。 3.［c］(运动场)跑道：They ran five times round the track. 他们绕跑道跑了五圈。 4.径赛：In high school she became a track star. 在中学时她成了一位径赛明星。5. 用于习语 keep track of掌握动态：I’ve never been very good at keeping track of what I spend my money on. 我从不善于掌握自己究竟把钱花到哪里去了。lose track (of) 不知道；不记得：What he was saying was so complicated that I lost track after the first couple of sentences.她说的事情很是复杂，开始几句后我就听不懂了。I’ve lost track of the number of times he’s asked me to lend him money.我记不得他共有几次向我借钱了。 ‖II. vt. 跟踪，追踪： Police use dogs to track the criminal. 警察用警犬追踪罪犯。track down 终于找到：He finally managed to track down the book he wanted.他终于找到了他要找的书。

［辨析］track 指沿着人或动物或车辆等留下的印迹 “追踪，跟踪”。 trail 多指某人上路后，暗中对其“跟踪，尾随”，也可指利用足迹、嗅迹等追踪逃犯或猎物。