Word · Frequency #7072
acceleration
加速；加快
核心释义
The act of accelerating or increasing speed.
- 1.
The act of accelerating, or the state of being accelerated; increase of motion or action; as opposed to retardation or deceleration.
- 2.
变化率的增加
an increase in rate of change
- 3.
The amount by which a speed or velocity increases (and so a scalar quantity or a vector quantity).
- 4.
加速的行为；提高速度
the act of accelerating; increasing the speed
- 5.
The change of velocity with respect to time (can include deceleration or changing direction).
- 6.
(物理) 速度的增加率
(physics) a rate of increase of velocity
- 7.
The advancement of students at a rate that places them ahead of where they would be in the regular school curriculum.
加速度；变化率的增加；跳级；加速学习；加速的行为；提高速度；(物理) 速度的增加率
用法In use
The car's acceleration was impressive during the test drive.
用法提示：这里'acceleration'作为名词，表示车辆加速的能力。
The acceleration of economic growth was slower than expected after the new policies.
用法提示：这里'acceleration'作为名词，表示经济增长速度的加快。
In physics class, we learned that acceleration is the rate of change of velocity.
用法提示：这里'acceleration'作为专业术语，表示物理中的加速度。
modern science caused an acceleration of cultural change
the acceleration of noun
N为名词或名词短语。
The acceleration of economic growth is crucial.
经济增长的加速至关重要。
相关词与表达Connections
搭配Collocations
- rapid acceleration
- 快速加速
- The car's rapid acceleration pushed me back into my seat.汽车的快速加速把我推回到座位上。
- acceleration rate
- 加速度
- The acceleration rate of the rocket was impressive.火箭的加速度令人印象深刻。
- acceleration pedal
- 加速踏板
- Press the acceleration pedal gently to increase speed.轻轻踩下加速踏板以增加速度。
- acceleration of growth
- 增长加速
- The acceleration of growth in the tech sector is remarkable.科技行业的增长加速是显著的。
- positive acceleration
学习提示Learner notes
记忆技巧Memory Tip
加速（acceleration）类似'加速器'（accelerator），踩油门就加速。
语境与语域Context & Register
该词通常为中性，多用于物理、科技或一般加速情景；在非正式语境中较少出现。
语法说明Grammar Note
常作不可数名词，但也可作可数名词表示具体的加速事件。
发音与拼写Pronunciation & Spelling
Words like celebration, information, education, and nation share the same /eɪʃən/ ending and rhyme with acceleration. Action and accent look similar in spelling but have different vowel sounds, so they are not rhymes.
用法优先级Usage priority
Collins 词频等级为 1，建议结合例句记忆，而不是只背中文释义。
一起学习词形
Dictionary facts from ECDICT, WIKTIONARY.