王小虎呦
常见的英语"减速"和"超速"表达分别是 to slow down/to reduce speed 和 to drive over speed limit/to speed over limit。除了上述动词表达，还可以用名词形式表达——减速：slowing down，speed reduction例：Slowing down/Speed reduction is required when driving through residential areas.超速：over-speeding例：Over-speeding will be fined.
江河装饰
Define 减速: [ jiǎn sù ] 1. gear down2. retardment3. speed-down4. deceleration5. slowdown6. decelerate7. throttle8. Ease down9. reduce speedRelative explainations:
twinkle100
减速 [词典] decelerate; moderate; reduce the speed; shift down; speed reduction; [例句]路很滑，你最好减速。The road is slippery; you'd better slow down.
天天天晴9080
减速: 1. gear down2. retardment3. speed-down4. slowdown5. decelerate6. throttle 例句与用法: 1. 我告诉他好几遍让他减速，可他就是不听。 I told him several times to slow down, but he pay no attention. 2. 回旋使一个做直线运动的物体减速、停滞或倒转的一种旋转，尤指一个球 A spin that tends to retard, arrest, or reverse the linear motion of an object, especially of a ball. 3. 飞机正在减速。 The plane's slow down. 超速: 1. excessive speed2. hypervelocity3. overspeed 例句与用法: 1. 他被告发超速行驶。 He was prosecuted for exceeding the speed limit. 2. 她因超速开车而被罚款。 She was fined for driving above the regulation speed. 3. 他因超速开车而被记录在案。 He was booked on a charge of speeding. 4. 他因超速行车被罚款达 200 英镑. He was fined for speeding to the tune of 200. 5. 他因超速行驶而被传讯出庭. He was summonsed for speeding. 6. 他超速行车被（警察）逮住了. He was nabbed (by the police) for speeding. 7. 警察说他在高速公路上违章超速行驶. The police said he'd been speeding on the motorway. 8. 她儿子的驾驶执照上有两次超速记录. Her son has had two endorsements for speeding.
暗了个然
减速: 1. gear down2. retardment3. speed-down4. deceleration5. slowdown6. decelerate7. throttle
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