1
decelerate (intransitive)
The train decelerated slowly.
火车缓慢减速。
减速；放慢速度
先理解核心含义，再看它在真实句子里的用法。
减速；放慢速度
to move more slowly or lose speed
The train decelerated slowly.
火车缓慢减速。
减速；放慢速度
lose velocity; move more slowly
减速,降低速度
reduce the speed of
decelerate
Base
原形
decelerates
3rd person
第三人称单数
decelerating
-ing
现在分词
decelerated
Past
过去式
decelerated
Past participle
过去分词
The car decelerates as it approaches the stop sign.
汽车在接近停车标志时减速。
The train decelerated before entering the station.
火车在进站前减速。
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。
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。
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。
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。
Not this
The driver decelerated down the car before the turn.
Use this
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。
Not this
Please decelerate to merge into the highway.
Use this
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。
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Focus on the distinctions below. Other candidates are kept compact until a reliable usage note is available.
Use decelerate naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
页面下方列出了常见词形变化。学习时注意它们在句子中的语法位置。
Dictionary facts from ECDICT, WORDNET.