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词组 speed
释义
speed /spiːd/ noun the rate at which something moves or travelsphrasesat a speed of 50 miles/100 kilometres per hour etc The truck was travelling at a speed of 50 miles per hour.at high/great speed The train was moving at high speed.at low/slow speed Even at low speed, an accident could mean serious injury for a child.at full speed (=as fast as possible) He ran past us at full speed.at/with lightning speed (=very quickly) The player moved with his usual lightning speed.at breakneck speed (=very quickly) The car drove away at breakneck speed.at the speed of light/sound (=at the same speed as light or sound waves) These particles travel at the speed of light.a burst of speed (=a short period when someone or something suddenly goes fast) The train continued north with an occasional burst of speed.adjectivesan average speed Our average speed was 70 miles per hour.a constant/steady speed (=not changing much) The disc revolves at a constant speed.a top/maximum speed (=the highest possible) The car has a top speed of 220 kilometres per hour.excess/excessive speed (=going too fast) In most road accidents, excessive speed is to blame.nouns + speedwind speed (=the speed of the wind) The average wind speed will be about 20 miles an hour.air speed (=the speed of a plane in relation to the air around it) The plane went on to set a world air speed record.verbsincrease your speed She increased her speed until she was running as fast as she could.pick up/gain/gather speed (=go faster) The Mercedes was gradually picking up speed.reach a speed The trains will reach speeds of 240 miles per hour.maintain a speed (=keep the same speed) The aircraft is designed to maintain a steady speed.reduce speed (=slow down deliberately) She reduced speed as she approached the village.lose speed (=slow down without wanting to) The engine made a strange sound and we lost speed.speed + nounsa speed limit Breaking the speed limit can be dangerous.a speed restriction New speed restrictions have been introduced.a speed camera (=a camera that photographs vehicles going too fast) The car was caught on speed camera doing over 180 kilometres an hour.a speed bump (=a raised part of a road intended to make drivers slow down) The local authority has introduced speed bumps to reduce the number of accidents outside the school.
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更新时间:2025/1/16 3:32:20