high speed
high speed — noun
1. the condition in which something moves, travels, or happens at a rate that is mu
the condition in which something moves, travels, or happens at a rate that is much faster than what is usual or normal
The express train travels at high speed from Paris to Lyon in under two hours.
pattern: at high speed
Data can be transferred at high speed through the new fibre-optic network.
Ritu reached a high speed on the motorway before the police car appeared behind her.
A driver must never go around a sharp corner at high speed.
- fast rate
more general; works for any process, not just motion
- rapid pace
slightly more formal; often used for change or development, not physical movement
- low speed
the direct opposite in terms of rate of motion
文法句型
at + high speed
用法筆記
Usually follows the preposition 'at' when describing motion (at high speed). The noun 'speed' can also be modified by other adjectives (low speed, top speed) but 'high speed' is the most common pairing.
常見錯誤
high speed — adjective
1. made or intended to work, move, or happen at a very fast rate, usually much fast
made or intended to work, move, or happen at a very fast rate, usually much faster than ordinary versions of the same thing
The government plans to build a high-speed railway from the capital to the coast.
collocation: high-speed railway
Madison installed a high-speed internet connection so she could work from home without delays.
A high-speed printer in the office can produce over fifty pages every minute.
The factory uses a high-speed conveyor belt to move boxes across the building.
A high-speed train from Taipei to Kaohsiung takes about ninety minutes.
文法句型
high-speed + noun
用法筆記
Attributive only — this adjective goes before the noun it describes (a high-speed train), never after a linking verb (❌ the train is high-speed). It is nearly always hyphenated when written. The noun sense 'high speed' is two separate words and follows 'at'.