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n (1)蹤(足，痕)跡(marks made by sb/sth as he/she/it moves which can be seen and followed by others)[C，通常pl]：follow sb's～s through the snow/in the mud/into the woods 跟著某人的足跡在雪地上前進(jìn)/跟著某人在泥地上的足跡前進(jìn)/跟著某人的腳印進(jìn)入森林;tyre/fresh bear～s 輪胎痕跡/熊的新足跡;〖同〗footprint，mark，sign，trail，path;

(2)路線(徑)(pathway or course on which sth moves or may move)[C]：go along/follow in the same～of earlier explorers 沿著/順著早期探險(xiǎn)家走過的路線前進(jìn);the～of a storm/a ship/a comet/a satellite 風(fēng)暴經(jīng)過的路線/船航行的路線/彗星運(yùn)行的軌跡/衛(wèi)星飛行的軌跡;〖同〗course，path，way;

(3)崎嶇道路，小路(徑)(rough path or road)[C]：walk along the～to the village 沿著小路向村莊走去;a rough/mountain/sheep/bicycle/muddy～不平的小路/崎嶇的山路/羊踏出的小道/自行車小徑/泥濘的小路;

(4) 1)(火車的)軌道(rail or set of parallel rails on which a train or trolley runs)[C]：a single/double/railway/railroad～單軌/雙軌/火車軌道/火車軌道;(train) leave the～(火車)出軌;The～went through a tunnel. 火車軌道穿過隧道?！纪絩ail; 2)火車站的月臺(tái)(railway platform)[C](AmE)：The train will leave on～number three. 火車將從3號(hào)站臺(tái)離去。

(4)跑道(course made for running or racing on)[C]：run five times round the～繞跑道跑五圈;excel at both～and basketball 擅長徑賽和籃球;～racing/events 徑賽/徑賽項(xiàng)目;a motor-racing/cycling/running～汽車比賽/自行車比賽/賽跑的跑道;～and field 田徑(體育)運(yùn)動(dòng);

in one's tracks 突然，當(dāng)場：He stopped in his～s. 他突然停了下來。

keep/lose track of sb/sth 與……保持/失去聯(lián)系：I find it difficult to keep～of my old friends. 我覺得和老朋友保持聯(lián)系很困難。

make tracks for 走向(infml)：It's past ten o'clock;it's time we were making～s for home. 已經(jīng)10點(diǎn)多了，我們該回家了。

on the right/wrong track 想(做)得對(duì)/錯(cuò)：He couldn't solve the problem because he started out on the wrong～. 他解決不了這個(gè)問題，因?yàn)樗麖囊婚_始就想錯(cuò)了。

→′track record 過去的成績(就);′track suit (運(yùn)動(dòng)用)寬松暖和的衣褲;′trackless adj 沒路的;無軌的;

vt 追蹤(follow the footprints or trail of)[T+n，T+n+prep (to)]：～a satellite/a missile/the weather balloons using radar 使用雷達(dá)追蹤衛(wèi)星/導(dǎo)彈/氣象氣球;～a criminal using dogs 用警犬追蹤罪犯;～a terrorist/the person to the hide-out (his house) 追蹤恐怖分子/那個(gè)人直到他隱藏的地方(他家);～an animal to its lair 追蹤一只動(dòng)物直到它的巢穴;～ing station追蹤站;〖同〗trail，follow，trace;

track down (v adv) 1)追蹤并發(fā)現(xiàn)(vt)：～down the dangerous bears/wild animals to their lair 追蹤那些危險(xiǎn)的熊/野生動(dòng)物至其巢穴; 2)找到，查到(vt)：～down the answers (in books)/the cause of the infection(在書里)查到答案/查到感染源;

track in (v adv)腳上帶進(jìn)(泥)(vt)：Look at all that mud that you've～ed in on your feet. 你看你腳上帶進(jìn)來的泥。

→′tracker n 追蹤野獸等的人;′tracked adj有履帶的;

【辨異】 1)track與lane和path的區(qū)別見LANE。2)track與trace和trail的區(qū)別見TRACE。