speed

speed

noun

1. changing location rapidly

Synonym: speedinghurrying

2. a central nervous system stimulant that increases energy and decreases appetite
used to treat narcolepsy and some forms of depression

Synonym: amphetaminepep pillupper

3. a rate (usually rapid) at which something happens

e.g. the project advanced with gratifying speed

Synonym: swiftnessfastness

4. the ratio of the focal length to the diameter of a (camera) lens system

Synonym: focal ratiof numberstop number

5. distance travelled per unit time

Synonym: velocity

verb

1. move faster

e.g. The car accelerated

Synonym: acceleratespeed upquicken

2. cause to move faster

e.g. He accelerated the car

Synonym: acceleratespeed up

3. move very fast

e.g. The runner zipped past us at breakneck speed

Synonym: travel rapidlyhurryzip

4. travel at an excessive or illegal velocity

e.g. I got a ticket for speeding

5. move fast

e.g. He rushed down the hall to receive his guests
The cars raced down the street

Synonym: rushhotfoothastenhieracepelt alongrush alongcannonball alongbucket alongbelt alongstep on it

1. (运动、运行的)速度，速率
The speed of something is the rate at which it moves or travels.

e.g. He drove off at high speed...
他驱车飞驰而去。
e.g. 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。

2. (某事发生或进展的)速度，进度
The speed of something is the rate at which it happens or is done.

speed什么意思

e.g. In the late 1850s the speed of technological change quickened...
19 世纪 50 年代末期，技术变革的速度加快了。
e.g. 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。

3. (指运动、运行的)高速，快速
Speed is very fast movement or travel.

e.g. Speed is the essential ingredient of all athletics...
速度是所有田径运动项目的关键要素。
e.g. He put on a burst of speed...
他突然加速了。

4. (指某事发生或进展时的)高速，快速
Speed is a very fast rate at which something happens or is done.

e.g. I was amazed at his speed of working.
他办事之麻利让我深感叹服。
e.g. ...the sheer speed of the unification process.
统一进程速度惊人

5. (尤指坐车)快速行进
If you speed somewhere, you move or travel there quickly, usually in a vehicle.

e.g. 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。
e.g. 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。

6. (驾车者)超速行驶
Someone who is speeding is driving a vehicle faster than the legal speed limit.

speed

e.g. 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。

7. 安非他明(一种兴奋剂)
Speed is an illegal drug such as amphetamine which some people take to increase their energy and excitement.

8. see also: -speed

9. to pick up speed -> see pick

10. 掌握最新情况的
If you are up to speed, you have all the most recent information that you need about something.

e.g. 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。
e.g. 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。

相关词组：speed up

1. speed：self programmed electronic equation delineator; 自编程电子方程图解器

2.

2. speed：single pointemergency equipment divestment; 应急装备单点解脱机构