speed

n.速度；快速；昌盛；（汽车的）变速器，排挡

vt.& vi.急行，加速

vi.超速；加速；迅速前行；兴隆

vt.加快…的速度；使成功，使繁荣

noun

运动 / 行动速率 rate of movement/action

1. （运动的）速度，速率
   the rate at which sb/sth moves or travels
   1. He reduced speed and turned sharp left.
      他减慢速度，向左急转。
   2. The train began to pick up speed (= go faster) .
      火车开始加速。
   3. The car was gathering speed .
      汽车逐渐加速。
   4. a speed of 50 mph/80 kph
      每小时50英里 / 80公里的速度
   5. at high/low/full/top speed
      以高 / 低 / 全 / 最高速
   6. at breakneck speed (= fast in a way that is dangerous)
      以不要命的速度
   7. travelling at the speed of light/sound
      以光速 / 音速行进
2. （发生或进行的）速度；进度
   the rate at which sth happens or is done
   1. the processing speed of the computer
      计算机的处理速度
   2. This course is designed so that students can progress at their own speed.
      这门课的设计思路是让学生自己掌握进度。
   3. We aim to increase the speed of delivery (= how quickly goods are sent) .
      我们力争提高送货速度。
3. 快；迅速
   the quality of being quick or rapid
   1. The accident was due to excessive speed.
      事故的原因在于速度过快。
   2. She was overtaken by the speed of events (= things happened more quickly than she expected) .
      事态发展迅速为她始料所不及。
   3. A car flashed past them at speed (= fast) .
      一辆汽车从他们身边疾驰而过。

摄影 in photography

4. 感光度
   a measurement of how sensitive film for cameras, etc. is to light
5. 快门速度
   the time taken by a camera shutter to open and close
   1. shutter speeds
      快门速度

自行车；汽车 on bicycle/car

6. 排挡；速
   a gear on a bicycle, in a car, etc.
   1. a four-speed gearbox
      有四挡的变速箱
   2. a ten-speed mountain bike
      十速山地自行车

毒品 drug

7. 苯丙胺，安非他明（一种兴奋剂）
   an illegal amphetamine drug that is taken to give feelings of excitement and energy

verb

快速运动 / 发生 move/happen quickly

1. 快速前行
   to move along quickly
   1. He sped away on his bike.
      他飞快地骑着车走了。
2. 快速运送
   to take sb/sth somewhere very quickly, especially in a vehicle
   1. The cab speeded them into the centre of the city.
      出租汽车载着他们迅速驶往市中心。
3. 加速；促进
   to make sth happen more quickly
   1. The drugs will speed her recovery.
      这些药会促进她的康复。

超速驾驶 drive too fast

4. 超速驾驶；超速行驶
   to drive faster than the speed that is legally allowed
   1. The police caught him speeding.
      警察发现他超速行驶。

vi. 超速，加速；加速，迅速前行；兴隆 n. 速度，速率；迅速，快速；昌盛，繁荣 vt. 加快…的速度；使成功，使繁荣 n. (Speed)人名；(英)斯皮德

名词复数形式:speeds 现在分词:speeding 过去式:sped 第三人称单数:speeds 过去分词:speeded

speed 繁荣，兴旺，速度，迅速，快速

来自古英语 sped,繁荣，兴旺，来自 Proto-Germanic*spodiz,繁荣，兴旺，来自 PIE*spe,繁荣， 兴旺，词源同 prosper,desperate.后引申比喻义速度，迅速，快速，且成为主要词义，原词义 逐渐不再使用。

1. This system helps speed up access times.
   这个系统有助于加快存取时间。
2. Every bank pays close attention to the speed and accuracy of its staff.
   每家银行都非常关注雇员的工作速度和无差错率。
3. Car buyers are more interested in safety and reliability than speed.
   购车者们更感兴趣的是汽车的安全性和可靠性，而不是它的速度。
4. The speed of economic change has been so great that the tax-collecting system has been unable to cope.
   经济变化得如此之快，以致税收系统都应付不过来了。
5. The speed with which digital cameras can take, process and transmit an image is phenomenal.
   数码相机拍摄、处理和传输图像的速度相当惊人。
6. He accepts he was exceeding the speed limit
   他承认自己超速了。
7. The train's average speed was no better than that of our bicycles.
   火车的平均速度比我们骑自行车的速度快不了多少。
8. He measured the speed at which ultrasonic waves travel along the bone.
   他测出了超声波穿过骨头的速度。
9. Speed and safety are not necessarily incompatible
   速度和安全未必不相容。
10. Its speed is probably in the neighbourhood of 380mph or even more.
    它的时速大约达到了380英里，或者更快。
11. It is a racing machine, designed purely for speed
    那是一个比赛用的机器，完全是为提高速度设计的。
12. The system provides a digital readout of the vehicle's speed
    这个系统提供车辆速度的电子读数。
13. He drove off at high speed
    他驱车飞驰而去。
14. With this type of camera, the shutter speed is fixed
    对这类相机而言，快门的速度是固定的。
15. An electrical pulse in a wire travels close to the speed of light
    电线里的电脉冲以接近光速的速度传输。
16. Each learner can proceed at his own speed.
    每一位学习者都可以按自己的进度学习。
17. Speed is the essential ingredient of all athletics
    速度是所有田径运动项目的关键要素。
18. He put on a burst of speed
    他突然加速了。
19. The car is quite noisy at speed.
    这辆车高速行驶时噪音很大。
20. I was amazed at his speed of working.
    他办事之麻利让我深感叹服。
21. Trains will speed through the Channel Tunnel at 186mph
    火车将以每小时186英里的速度快速穿过海峡隧道。
22. The engine noise rises only slightly as I speed along.
    我一路高速行驶时，发动机的噪音只提高了一点点。
23. This man was not qualified to drive and was speeding.
    这名男子没有驾驶资格，并且违章超速行驶。
24. A day has been set aside to bring all councillors up to speed on the proposal
    已经确定了一个日子，届时将向所有的市政委员汇报有关该建议的最新进展情况。
25. Those in charge deluded themselves they were up to speed.
    那些负责人自以为掌握了最新情况。
26. I had already taken steps to speed up a solution to the problem
    我已经采取措施加快解决该问题。
27. I want to know at what point I break the speed limit and get a ticket.
    我想知道我是在什么地方超速而受到处罚的。
28. We are developing our production at a speed unheard-of before.
    我们正以前所未闻的速度发展生产。