decelerate (intransitive)
The train decelerated slowly.
火车缓慢减速。
减速；放慢速度
decelerated — past of decelerate
使减速；降低…的速度；减速,降低速度；(使)减速
to move more slowly or lose speed
减速；放慢速度
lose velocity; move more slowly
减速,降低速度
reduce the speed of
一般现在时
The car decelerates as it approaches the stop sign.
汽车在接近停车标志时减速。
一般过去时
The train decelerated before entering the station.
火车在进站前减速。
现在进行时
The plane is decelerating after landing.
飞机在着陆后正在减速。
动词形式规则变化
The driver had to decelerate quickly to avoid hitting the deer.
司机不得不迅速减速以避免撞到鹿。
用法提示：decelerate 作为不及物动词，表示车辆速度降低。
The pilot decelerated the plane smoothly before landing.
飞行员在着陆前平稳地降低了飞机的速度。
用法提示：decelerated 作为及物动词，表示使飞机减速。
As the economy decelerates, companies are cutting back on investments.
随着经济增长放缓，公司正在减少投资。
用法提示：decelerates 作为不及物动词，比喻经济增速下降。
The train decelerated slowly.
火车缓慢减速。
The pilot decelerated the aircraft before landing.
飞行员在着陆前让飞机减速。
表示速度变化的范围。
The car decelerated from 100 km/h to 50 km/h.
汽车从每小时100公里减速到50公里。
grammar · medium
易错句子The driver decelerated down the car before the turn.
正确表达The driver decelerated the car before the turn.
中文学习者常受中文表达‘减速下来’的影响，在decelerate后多余添加down，导致语义重复。正确用法中，decelerate本身已包含减速的含义，直接跟宾语即可。
grammar · medium
易错句子Please decelerate to merge into the highway.
正确表达Please accelerate to merge into the highway.
词义混淆：decelerate意为减速，而此处并入高速公路需要加速，故应使用accelerate。
拼写和发音相似，但意义相反：accelerate 是加速，decelerate 是减速。
同义但用法更口语化，decelerate 更正式，常用于技术或专业语境。
Choose the next layer that will help you use decelerated with more confidence.
Recommended next
Missing: Collocations
Complete this area with collocations.
Includes Context & register & Memory tip
Analyze the context and learn memory tricks to remember it.
More ways to explore
Includes Synonyms & Antonyms
Expand your vocabulary with synonyms and antonyms.
Includes Spelling & sound
Explore words with similar spelling endings or sounds.
Includes Word components & Thematic vocabulary
Learn how to build related words using roots, prefixes, and thematic clusters.
Includes Idioms & Cultural references
Discover idioms, slang, and famous pop culture quotes.
Dictionary facts from ECDICT, WORDNET.