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IELTS BNC: 1245 COCA: 1390
speed
spiːd spid
Word forms: plural , 3rd person singular present tense speeds, present participle speeding, past tense , past participle sped, past tense , past participle speeded
The form of the past tense and past participle is sped in meaning 5 but speeded for the phrasal verb. 义项 5 的过去式和过去分词为sped，但在短语动词中则为 speeded。
1 N-VAR (运动、运行的)速度，速率 The speed of something is the rate at which it moves or travels. (运动、运行的)速度，速率

  • He drove off at high speed.

    他驱车飞驰而去。

  • 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。

  • 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。

  • Wind speeds reached force five.

    风速达到 5 级。

SYN rate, pace, momentum, tempo
2 N-COUNT (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. (某事发生或进展的)速度，进度

  • 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。

  • 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。

SYN rate, pace, momentum, tempo
3 N-UNCOUNT (指运动、运行的)高速，快速 Speed is very fast movement or travel. (指运动、运行的)高速，快速

  • Speed is the essential ingredient of all athletics.

    速度是所有田径运动项目的关键要素。

  • He put on a burst of speed.

    他突然加速了。

  • The car is quite noisy at speed.

    这辆车高速行驶时噪音很大。

SYN velocity, swiftness, acceleration, precipitation
4 N-UNCOUNT (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. (指某事发生或进展时的)高速，快速

  • I was amazed at his speed of working. [+ of]

    他办事之麻利让我深感叹服。

  • ...the sheer speed of the unification process. [+ of]

    统一进程速度惊人

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

  • Trains will speed through the Channel Tunnel at 186mph. [VERB prep./adv.]

    火车将以每小时 186 英里的速度快速穿过海峡隧道。

  • The engine noise rises only slightly as I speed along. [VERB prep./adv.]

    我一路高速行驶时，发动机的噪音只提高了一点点。

SYN race, rush, hurry, zoom
6 VERB [usually cont] (驾车者)超速行驶 Someone who is speeding is driving a vehicle faster than the legal speed limit. (驾车者)超速行驶

  • This man was not qualified to drive and was speeding. [VERB]

    这名男子没有驾驶资格，并且违章超速行驶。

SYN exceed the speed limit, drive too fast, break the speed limit
speeding

  • He was fined for speeding last year.

    他去年因超速行驶被罚了款。

7 N-UNCOUNT 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. 安非他明(一种兴奋剂) [informal]
8 See also: -speed 
9 to pick up speed→see: pick 
10 PHRASE 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. 掌握最新情况的

  • 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。

  • 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。

Phrasal verbs:
speed up
Trends of speed
View usage for:All yearsLast 10 yearsLast 50 yearsLast 100 yearsLast 300 years

See also: -speed

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