Question

speed n.速度；迅速v.加速；急行 (1) 由于有雾，警察告诫驾车者减慢速度。(2) 这架飞机可以达到每小时一千公里以上的速度。(3) 她迅速打好那封信。(4) 这一切都需要非常迅速地干完。(5) 火车不久就加快了速度。(6) 如果我们想准时到达那里，我们最好加快速度。(7) 假期简直是一晃而过。 Speed can be a noun or verb. As a noun, it's an indicator of pace, as in the speed of a car. As a noun, it's also a drug that keeps you awake, very awake. As a verb, it means to “move along quickly,” like how you speed around on your bike. A fun fact: while speed refers to the distance traveled by an object during a specific amount of time, velocity describes that distance, but in a specified direction.

Accepted Answer

英 [spiːd] 美 [spiːd] (1) The police are advising motorists to reduce speed because of the fog.(2) This plane can reach speeds in excess of 1000 kilometers an hour.(3) She finished typewriting the letter at speed.(4) All this must be done at very great speed.(5) The train soon speeded up.(6) We'd better speed up if we want to get there in time.(7) The holidays simply sped by. Speed most often describes acceleration or a high rate of motion. When something picks up too much speed, it can run off course, like a kid on a bike zooming uncontrollably down a steep hill. 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 可变名词](运动、运行的)速度，速率 The speed of something is the rate at which it moves or travels.   [with supp]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。2[N-COUNT 可数名词](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.   [with supp]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。3[N-UNCOUNT 不可数名词](指运动、运行的)高速，快速 Speed is very fast movement or travel. 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。4[N-UNCOUNT 不可数名词](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.   [usu N of n/-ing]I was amazed at his speed of working.他办事之麻利让我深感叹服。...the sheer speed of the unification process.统一进程速度惊人5[VERB 动词](尤指坐车)快速行进 If you speed somewhere, you move or travel there quickly, usually in a vehicle.   [V prep/adv]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。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[VERB 动词](驾车者)超速行驶 Someone who is speeding is driving a vehicle faster than the legal speed limit.   [V]  [usu cont]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。speedingHe was fined for speeding last year.他去年因超速行驶被罚了款。7[N-UNCOUNT 不可数名词]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.   [INFORMAL 非正式]8See also:-speed；  9 to pick up speed→see: pick； 10[PHRASE 短语]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.   [oft PHR on n]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。相关词组：speed up

英语单词	speed
英美音标	英 [spiːd] 美 [spiːd]
中文释义	n.速度；迅速 v.加速；急行
英语例句	(1) The police are advising motorists to reduce speed because of the fog. (2) This plane can reach speeds in excess of 1000 kilometers an hour. (3) She finished typewriting the letter at speed. (4) All this must be done at very great speed. (5) The train soon speeded up. (6) We'd better speed up if we want to get there in time. (7) The holidays simply sped by.
中文例句	(1) 由于有雾，警察告诫驾车者减慢速度。 (2) 这架飞机可以达到每小时一千公里以上的速度。 (3) 她迅速打好那封信。 (4) 这一切都需要非常迅速地干完。 (5) 火车不久就加快了速度。 (6) 如果我们想准时到达那里，我们最好加快速度。 (7) 假期简直是一晃而过。
vocabulary简明	Speed most often describes acceleration or a high rate of motion. When something picks up too much speed, it can run off course, like a kid on a bike zooming uncontrollably down a steep hill.
vocabulary扩展	Speed can be a noun or verb. As a noun, it's an indicator of pace, as in the speed of a car. As a noun, it's also a drug that keeps you awake, very awake. As a verb, it means to “move along quickly,” like how you speed around on your bike. A fun fact: while speed refers to the distance traveled by an object during a specific amount of time, velocity describes that distance, but in a specified direction.
柯林斯解释	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 可变名词](运动、运行的)速度，速率 The speed of something is the rate at which it moves or travels. [with supp] 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。 2 [N-COUNT 可数名词](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. [with supp] 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。 3 [N-UNCOUNT 不可数名词](指运动、运行的)高速，快速 Speed is very fast movement or travel. 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。 4 [N-UNCOUNT 不可数名词](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. [usu N of n/-ing] I was amazed at his speed of working. 他办事之麻利让我深感叹服。 ...the sheer speed of the unification process. 统一进程速度惊人 5 [VERB 动词](尤指坐车)快速行进 If you speed somewhere, you move or travel there quickly, usually in a vehicle. [V prep/adv] 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。 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 [VERB 动词](驾车者)超速行驶 Someone who is speeding is driving a vehicle faster than the legal speed limit. [V] [usu cont] 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。 speeding He was fined for speeding last year. 他去年因超速行驶被罚了款。 7 [N-UNCOUNT 不可数名词]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. [INFORMAL 非正式] 8 See also:-speed ； 9 to pick up speed→see: pick ； 10 [PHRASE 短语]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. [oft PHR on n] 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。相关词组： speed up

Speed Rate N Uncount 不可数名词 Speeded Sped Describes High