| 单词 | speed |
| 释义 | nounverb🔑 speedBrE /spiːd/ NAmE /spiːd/ noun ➤ rate of movement /action 运动/行动速率🔑 [C , U ]the rate at which sb /sth moves or travels （运动的）速度，速率◆ He reduced speed and turned sharp left . 他减慢速度，向左急转。◆ The train began to pick up speed (= go faster ). 火车开始加速。◆ The car was gathering speed . 汽车逐渐加速。◆ a speed of 50 mph /80 kph 每小时 50 英里/80 公里的速度◆ at high /low /full /top speed 以高速/低速/全速/最高速◆ at breakneck speed (= fast in a way that is dangerous )以不要命的速度◆ travelling at the speed of light /sound 以光速/声速行进 ➡ see also airspeed, ground speed🔑 [C , U ]the rate at which sth happens or is done （发生或进行的）速度；进度◆ the processing speed of the computer 计算机的处理速度◆ 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。◆ We aim to increase the speed of delivery (= how quickly goods are sent ). 我们力争加快送货速度。🔑 [U ]the quality of being quick or rapid 快；迅速◆ The accident was due to excessive speed . 事故的原因在于速度过快。◆ 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。◆ (formal ) A car flashed past them at speed (= fast ). 一辆汽车从他们身边疾驰而过。➤ in photography 摄影[C ]a measurement of how sensitive film for cameras , etc . is to light 感光度[C ]the time taken by a camera shutterto open and close 快门速度◆ shutter speeds 快门速度➤ on bicycle /car 自行车；汽车[C ] (especially in compounds 尤用于构成复合词) a gear on a bicycle , in a car , etc .排挡；速◆ a four -speed gearbox 四挡变速箱◆ a ten -speed mountain bike 十速山地自行车back-pedal , cycling , dismount , handlebar , pedal , ride , saddle , speed , tandem , velodrome ➤ drug 毒品[U ](informal ) an illegal amphetaminedrug that is taken to give feelings of excitement and energy 苯丙胺，安非他明（一种兴奋剂） ● full speed /steam aˈhead with as much speed or energy as possible 全速（或全力）向前● up to ˈspeed (on sth )(of a person , company , etc .人、公司等) performing at an expected rate or level （在某事上）达到应有的速度，达标◆ the cost of bringing the chosen schools up to speed 使选定的学校达标所需的费用(of a person 人) having the most recent and accurate information or knowledge 了解最新情况；跟上形势◆ Are you up to speed yet on the latest developments ? 你了解最新的进展情况吗？● ˌmore ˈhaste , ˌless ˈspeed (BrE , saying ) you will finish doing sth sooner if you do not try to do it too quickly because you will make fewer mistakes 欲速则不达● a ˌturn of ˈspeed a sudden increase in your speed or rate of progress ; the ability to suddenly increase your speed 突然加速；加快进度；突然加快的能力◆ He put on an impressive turn of speed in the last lap . 他在最后一圈猛然加速。🔑 speedBrE /spiːd/ NAmE /spiːd/ verb present simple - I / you / we / they speed BrE /spiːd/ NAmE /spiːd/ present simple - he / she / it speeds BrE /spiːdz/ NAmE /spiːdz/ past simple speeded BrE /ˈspiːdɪd/ NAmE /ˈspiːdɪd/ past participle speeded BrE /ˈspiːdɪd/ NAmE /ˈspiːdɪd/ -ing form speeding BrE /ˈspiːdɪŋ/ NAmE /ˈspiːdɪŋ/ HELPIn senses 1 and 2 sped BrE /sped/ NAmE /sped/ is also used for the past tense and past participle .作第 1 及第 2 义时，过去式和过去分词也用 sped。➤ move /happen quickly 快速运动/发生[I ]+ adv ./prep .(formal ) to move along quickly 快速前行◆ He sped away on his bike . 他飞快地骑着车走了。[T ]~sb /sth + adv ./prep .(formal ) to take sb /sth somewhere very quickly , especially in a vehicle 快速运送◆ 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。[T ]~sth (formal ) to make sth happen more quickly 加速；促进◆ The drugs will speed her recovery . 这些药会加速她的康复。➤ drive too fast 超速驾驶[I ] (usually used in the progressive tenses 通常用于进行时) to drive faster than the speed that is legally allowed 超速驾驶；超速行驶◆ The police caught him speeding . 警察发现他超速行驶。 ● ˌspeed ˈup 🔑 ● ˌspeed sth↔ˈup 🔑 to move or happen faster ; to make sth move or happen faster （使）加速◆ The train soon speeded up . 火车很快加速了。◆ Can you try and speed things up a bit ? 你能不能设法加快一点事情的进度？ |
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