| 词汇 | speed |
| 释义 | speed noun uk/spiːd/ us/spiːd/ (RATE OF MOVEMENT) B1 [ C or U ]速度，速率 how fast something moves He was travelling at a speed of 90 mph. 他以每小时90英里的速度行进。 The car has a top speed of 155 miles per hour. 这辆汽车的最高时速是155英里。 You should lower/reduce your speed as you approach a junction. 接近交叉路口时应该放慢速度。 On a clear, straight road you can gather/pick up speed. 在空旷笔直的公路上可以加速行驶。 He came off the road while driving his car round a bend at high/breakneck speed (= very fast). 他在弯道上开得飞快，结果冲出了公路。 There are speed restrictions (= controls on how fast traffic is allowed to move) on this part of the road. 这段路是限速的。 an electric drill with two speeds (= rates at which it turns) 有两挡速度的电钻 B2 [ U ]飞速，快速 very fast movement I get a real thrill from speed. 飞速驾车会让我兴奋不已。 He put on a sudden burst of speed. 他突然加速了。 Both cars were travelling at speed (= very fast) when the accident happened. 事故发生时两辆车的速度都很快。 [ U ]（事情发生的）速度，进度 how fast something happens We were surprised at the speed of the response to our enquiry. 这么快就得到了答复，让我们很惊讶。 It was the speed at which it all happened that shocked me. 令我感到震惊的是整个事情发生得如此之快。 She got through her work with speed (= quickly) and efficiency. 她快速而高效地完成了她的工作。 the speed of light/sound 光／音速 the rate at which light or sound travels The speed of light is 300 million metres per second. 光速是每秒钟3亿米。 These planes travel at twice the speed of sound. 这些飞机以两倍音速飞行。 [ C ]排挡，变速器 a gear a bicycle with ten speeds 有10挡速度的自行车 a ten-speed bicycle 十速自行车 [ C ]（胶片的）感亮度 the rate at which a photographic film absorbs or reacts to light What speed film do I need for taking photographs indoors? 我在室内拍照片需要感亮度为多少的胶卷？ shutter speed 快门速度 the length of time for which part of a camera is open to allow light to reach the film when a photograph is being taken a high/low shutter speed 高／低快门速度
(DRUG) [ U ]苯丙胺，安非他明（一种兴奋剂） slang for amphetamine (= a drug that makes the mind or body more active) She was on speed at the time. 她当时服了安非他明。 Idiom up to speedidiom C1 了解最新情况；跟上进度 If you are up to speed with a subject or activity, you have all the latest information about it and are able to do it well. We arranged for some home tutoring to get him up to speed with the other children in his class. 我们安排了一些家庭辅导，以帮助他跟上班里其他孩子的进度。 Before we start the meeting I'm going to bring you up to speed with the latest developments. 在会议开始之前，我想先向大家介绍一下最新的进展。 speed verb [ I or T, usually + adv/prep ] uk/spiːd/ us/spiːd/ sped or speeded | sped or speeded （使）快速移动;（使）快速前行;加速;促进 to (cause to) move, go, or happen fast The train sped along at over 120 miles per hour. 火车以每小时120多英里的速度飞驰。 The actress then sped away/off in a waiting car. 后来女演员钻进了一辆等候的汽车，迅速离开了。 We sped down the ski slopes. 我们飞速滑下滑雪坡。 This year is speeding by/past. 这一年过得特别快。 Ambulances sped the injured people (= moved them quickly) away from the scene. 救护车载着伤员飞速驶离现场。 The best thing you can do to speed your recovery (= make it quicker) is to rest. 尽快让身体康复的最佳方法就是休息。 be speeding 违法超速行驶 to be driving faster than you are legally allowed to do He was caught speeding. 他超速行驶被抓住了。
Phrasal verb speed (something) up （使）加速;提高（…的）速度 to happen or move faster, or to make something happen or move faster This drug may have the effect of speeding up your heart rate. 这种药可能会使你心率加速。 Can the job be speeded up in some way? 这项工作能不能有什么办法加快速度呢？ The tape speeded up towards the end. 这盘磁带在接近结尾时速度突然加快了。 I think you need to speed up a bit (= drive faster) - we're going to be late. 我觉得你得开快点——我们要迟到了。 The economy shows signs of speeding up (= increasing activity). 经济呈现出加速增长的势头。 |
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