trail sb/sth
及物动词，表示跟在某人或某物后面。
Reporters trailed the senator through the crowd.
记者们尾随着参议员穿过人群。
跟踪；尾随
trails — third person singular of trail
拖；拖曳；落后；处于下风；留下（痕迹）；发布预告片；预告；拖垂；垂下
to follow behind someone or something
跟随在后；尾随
To follow behind (someone or something); to tail (someone or something).
在地上拖拉(某物)
To drag (something) behind on the ground.
留下(踪迹)
To leave (a trail of).
展示(电影、电视节目等)的预告片；提前发布或公布(报告等)的预览
To show a trailer of (a film, TV show etc.); to release or publish a preview of (a report etc.) in advance of the full publication.
松散地挂在后面或拖在后面；缓慢地移动
To hang or drag loosely behind; to move with a slow sweeping motion.
像某些植物一样生长或攀爬
To run or climb like certain plants.
懒洋洋或不情愿地拖着自己走
To drag oneself lazily or reluctantly along.
落后,比赛中处于劣势
To be losing, to be behind in a competition.
携带(枪支),枪托靠近地面,枪身向前倾斜,右手握住中部
To carry (a firearm) with the breech near the ground and the upper part inclined forward, the piece being held by the right hand near the middle.
在......中创造路径
To create a trail in.
通过跟随或创造路径旅行
To travel by following or creating trails.
通过沿小道驱赶来运输(牲畜)
To transport (livestock) by herding it along a trail.
一般现在时
She trails behind the group.
她落后于队伍。
一般过去时
He trailed the suspect through the streets.
他跟踪嫌疑人穿过了街道。
现在完成时
They have trailed the deer for hours.
他们已经追踪那头鹿好几个小时了。
规则动词
The little dog always trails its owner around the house.
那只小狗总在屋里跟着主人走来走去。
用法提示：trails 是 trail 的一般现在时第三人称单数形式，作及物动词，表示“跟随、尾随”。
We trailed the tour guide through the narrow streets of the old town.
我们跟着导游穿过老城狭窄的街道。
用法提示：trailed 是 trail 的过去式，作及物动词，表示“跟着……走、尾随”。
The children were trailing behind their parents, stopping to look at every shop window.
孩子们跟在父母后面，不时停下来看看每一家商店的橱窗。
用法提示：were trailing 是 trail 的过去进行时，作不及物动词，后接 behind，表示“落在后面、跟随”。
及物动词，表示跟在某人或某物后面。
Reporters trailed the senator through the crowd.
记者们尾随着参议员穿过人群。
不及物用法，表示落在后面或跟在后面。
She trailed behind the others on the walk.
散步时她落在其他人后面。
表示让某物在地上或身后拖曳。
He trailed his coat behind him.
他把外套拖在身后。
比赛中表示落后多少。
Our team is trailing by two goals.
我们队落后两球。
最通用，语气中性；可替换 trail 的“跟在后面”义，但没有 trail 那种缓慢、拖在后面或暗中尾随的感觉。
口语，常指警察或侦探秘密地紧跟某人；比 trail 更强调隐秘性。
强调依靠脚印、气味、痕迹等线索追踪，不一定只是走在后面；可用于人或动物。
正式，常指积极追赶或持续为捕到/达到目标而努力；trail 则更被动、速度感较弱。
强调快速奔跑去追，意图追上或抓住；trail 没有这种急促、主动的冲劲。
grammar · medium
易错句子She always trail behind the group when we hike.
正确表达She always trails behind the group when we hike.
主语 She 是第三人称单数，一般现在时动词要加 -s，用 trails；不能保留原形 trail。汉语动词没有这种人称变化，所以容易漏掉。
grammar · medium
易错句子At halftime our team trailed to theirs by two goals.
正确表达At halftime our team trailed theirs by two goals.
trail 表示"在比分上落后于某队"时直接跟宾语，不加介词 to；汉语"落后于"里的"于"并不对应英语介词，应说 trailed theirs by two goals。
grammar · medium
易错句子The little dog trailed with the boy all the way home.
正确表达The little dog trailed the boy all the way home.
trail 作"跟在……后面、尾随"讲时是及物动词，后面直接跟宾语；汉语"跟着某人"的"跟"不能译成 with，所以不能说 trailed with the boy。
此处取 trail 的“跟随在后；尾随”义（behind），lead 表示处在前面或领先，是直接反义词。
与 trail 的“尾随”义相对，precede 表示走在前面或先发生。
落在后面；尾随
The dog trailed behind its owner on the walk.
散步时，狗跟在主人后面。
（声音）逐渐变弱；渐渐消失
His voice trailed off as he realized his mistake.
当他意识到自己的错误时，声音逐渐变小。
用手指轻轻掠过（水面等）
She trailed her fingers in the cool stream.
她用手指轻轻划过清凉的小溪。
（比赛中）落后（多少分等）
At halftime, the home team trailed by two goals.
半场时，主队落后两球。
在民调中落后
The challenger is still trailing in the polls despite his recent surge.
尽管近期势头上升，挑战者在民调中仍然落后。
追踪时常依赖气味，与 trail 的“跟随/留下踪迹”义相关。
脚印是 trail 所留下痕迹的典型例子。
猎人会沿着猎物留下的 trail 进行跟踪。
prey 常是 trail 作“尾随”时所跟踪的对象。
一系列线索可构成 trail，表示“留下踪迹/线索”。
（声音、话语等）逐渐变小直至停止
His voice trailed off as he lost confidence.
随着信心的丧失，他的声音逐渐变小，最后停了下来。
开拓道路，做先驱
The company blazed a trail in online shopping.
这家公司开创了网上购物的先河。
出发，上路
We hit the trail before sunrise to avoid the heat.
为了避开炎热，我们在日出前就上路了。
发长 /eɪ/ 音 (如 rain, wait)
Choose the next layer that will help you use trails with more confidence.
Recommended next
Preparing Confusing words
Complete this area with confusing words.
Dictionary facts from DICTIONARY_API_DEV, ECDICT, WIKTIONARY.
跟踪嫌疑人
Officers trailed the suspect for three blocks before making an arrest.
警察跟踪嫌疑人走了三个街区后实施逮捕。