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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

IELTS BNC: 1245 COCA: 1390
speed

noun

ADJECTIVE | ... OF SPEED | VERB + SPEED | SPEED + VERB | SPEED + NOUN | PREPOSITION | PHRASES ADJECTIVE➤amazing, astonishing, breakneck, fast, good, great, high, incredible, lightning, phenomenal, remarkable, startling, surprising, terrific (especially BrE) 驚人的速度；非常危險的速度；快速；高速；令人難以置信的速度；閃電般的速度◇The new houses have been built with astonishing speed.這些新房子修建的速度快得驚人。◇He drove us to the hospital at breakneck speed.他以驚險的速度開車送我們去醫院。➤low, slow低速；慢速▸➤full, maximum, top, warp (informal, humorous, especially NAmE) 全速；最高速度；極速；超乎尋常的速度◇Business is moving at warp speed.貿易正以超乎尋常的速度推進。➤excess超速◇90% of car accidents involve excess speed.90% 的車禍與超速駕駛有關。➤constant, steady恆定的／平穩的速度▸➤average, normal平均／正常速度➤increased加快的速度➤operating, processing, processor, running運轉／處理／處理器／運行速度◇the increase in processor speeds for home computers家用計算機處理器速度的提升◇The machinery is regulated to a safe running speed.這台機器調到了安全的運行速度。➤broadband, connection, download寬帶／鏈接／下載速度◇We offer subscribers a download speed of 8 MB.我們為用戶提供 8 兆字節的下載速度。➤cruising, flying巡航／飛行速度➤supersonic超音速◇jets flying at supersonic speed超音速噴氣式飛機➤traffic (especially BrE) , etc.車流等速度▸➤air, wind風速➤engine發動機轉速➤shutter快門速度◇The camera will choose a fast shutter speed.照相機將選擇較快的快門速度。... OF SPEED➤burst一陣速度的爆發◇The Kenyan runner put on a sudden burst of speed over the last 50 yards.肯尼亞運動員在最後 50 碼突然加速。➤rate (NAmE) 速率◇He was traveling at a high rate of speed.他正以高速行駛。VERB + SPEED➤attain, reach到達⋯的速度◇The car reaches a speed of 60 miles per hour within five seconds.這款車能在 5 秒鐘之內提速到每小時 60 英里。➤build up, gain, gather, increase, pick up加速；提速◇The train pulled out of the station, slowly gathering speed.火車駛出車站，慢慢開始加速。➤lose失速▸➤kill, reduce減速；降速◇Motorists are asked to reduce their speed in wet conditions.要求駕駛員雨天行車要減慢速度。➤maintain保持速度◇The boat maintained a steady speed while the sea was calm.大海風平浪靜的時候，船保持平穩的速度。➤move at, run at, travel at以⋯速度移動／行駛／行進◇The glacier moves at an average speed of about six feet per day.冰川以平均每天 6 英尺的速度移動。◇Radio waves travel at the speed of light.無線電波以光速傳播。➤measure測量速度SPEED + VERB➤increase加速▸➤decrease減速SPEED + NOUN➤control, reduction, restriction (especially BrE) 速度控制；減速；限速▸➤record速度紀錄◇He set a new land speed record in this car.他開這輛車創了陸地行駛速度的新紀錄。➤bump, hump (BrE) 減速帶▸➤camera, trap超速行車監視攝像機；汽車超速監視區PREPOSITION➤at speed (= fast) 高速地◇The car was moving at speed when the accident happened.事故發生時，這輛車正高速行駛。◇at lightning speed以閃電般的速度➤in speed在速度上◇a significant increase in speed速度的顯著提高➤with speed以⋯速度◇Hedgehogs, though small, can move with surprising speed.刺猬儘管很小，但動起來速度驚人。➤speed of⋯速度◇The ships have a maximum speed of 18 knots.這些船的最快速度是 18 節。PHRASES➤at full speed, full speed以最快速度；全速◇He was running at full speed when a tendon snapped in his leg.他正全速奔跑時，腿部的一條肌腱斷裂了。➤full speed ahead全速前行◇The boat can be brought to a stop from full speed ahead within her own length.這艘船可以在一個船身的距離內從全速航行中停下來。➤the speed of light, the speed of sound光速；聲速◇Concorde crossed the Atlantic at twice the speed of sound.協和飛機以兩倍聲速飛越大西洋。➤a turn of speed (BrE) 緊急加速（性能）◇For a small car it has a good turn of speed.對小型轎車來說，這輛車的緊急加速性能挺不錯。
IELTS BNC: 1245 COCA: 1390
speed noun
⇨ speed (excessive speed) ⇨ rate 1 (at top speed)speed verb
⇨ accelerate (speed the development of sth) ⇨ fly 2 (He sped away on his bike.) speed

noun

speed ♦︎ velocity ♦︎ haste ♦︎ rapidityThese are all words that can be used when sth happens, travels or is done very quickly. 这些词均表示快速、迅速。PATTERNS AND COLLOCATIONS 句型和搭配◆increasing speed / velocity / rapidity◆great speed / haste / rapidity◆maximum / constant speed / velocity◆reckless speed / haste◆alarming / amazing / bewildering / remarkable speed / rapidity◆to measure speed / velocity■ speed [uncountable] the quality of being quick or happening quickly 快；迅速◆The accident was due to excessive speed.那次事故的原因是速度过快。◆She was overtaken by the speed of events (= things happened more quickly than she expected).事态发展之快是她始料不及的。◆ (formal) The car flashed past them at speed.那汽车从他们身边疾驰而过。  see also speed ⇨ rate 1 , speedy ⇨ quick ■ velocity vəˈlɒsəti; NAmE vəˈlɑːsəti [uncountable, countable] (technical 术语 or formal) the speed of sth in a particular direction; high speed （沿某一方向的）速度；高速；快速◆to gain / lose velocity加速；减速◆Light travels at a constant velocity.光以恒定速度传播。◆Jaguars can move with an astonishing velocity.美洲豹跑起来速度惊人。■ haste [uncountable] (formal) speed in doing sth, especially because you do not have enough time 急速；匆忙；仓促◆In her haste to finish on time she made a number of mistakes.她急急忙忙想按时完工，结果出了一些错误。◆The letter had clearly been written in haste.这封信显然是仓促写就的。  see also hasten ⇨ hurry , hasty ⇨ quick ■ rapidity rəˈpɪdəti [uncountable] the fact of happening or changing very quickly or in a short period of time 快速；高速◆These changes happen with extreme rapidity.这些变化是以极快的速度发生的。  see also rapid ⇨ quick
IELTS BNC: 1245 COCA: 1390

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