| 单词 | speed |
| 释义 | speedspeedsspeedspeed1 /spiːd/ noun1[uncountable and countable] how fast something movesat a speedHe was driving along at a speed of 60 mph.bedrive他以每小时60英里的速度驾驶。2[uncountable] the rate at which something happensspeed ofthe speed of change within the car industry汽车工业内部的变革速度3[uncountable] the quality of being fast: She acted with speed and efficiency.act 她的行动干净利落。The train began to pick up speed (=gradually move faster).begin火车开始加速。COLLOCATIONS: speedadjectiveshigh/great speedThe stolen car was being driven at high speed.stealbebedrivelow speedFortunately, the car was travelling at low speed when it hit her.betravelfull speed (=the highest speed possible)He ran off at full speed.runaverage speedThe average speed of cars in the city is less than 15 mph.carbelittlea constant/steady speedThe motor should run at a constant speed.shalla top/maximum speedHe bought a sports car with a top speed of 120 mph.buysportlightning speed (=very great speed)He moved with his usual lightning speed.movebreakneck speed (=very great speed)She drove away at breakneck speed.driveverbsto reach a speedThese birds can reach speeds of more than 100 mph.birdspeedto increase your speedGradually increase your speed.to reduce your speedShe reduced speed as she approached the village.reduceapproachto maintain a speed (=to keep moving at the same speed)The aircraft is designed to maintain a steady speed of 600 miles per hour.bedesignmil |
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