1
in a split second
The car swerved in a split second.
汽车在瞬间转向。
瞬间
先理解核心含义，再看它在真实句子里的用法。
瞬间
a very brief moment of time
The car swerved in a split second.
汽车在瞬间转向。
极短的时间
极短的时间(如眨眼或心跳的时间)
a very short time (as the time it takes the eye to blink or the heart to beat)
In a split second, the car swerved to avoid the dog.
在一瞬间，汽车急转弯避开了那只狗。
He made the decision in a split second.
他在一瞬间做出了决定。
The opportunity was gone in a split second.
机会转瞬即逝。
The car swerved in a split second.
汽车在瞬间转向。
A split second later, the door burst open.
一刹那后，门猛地打开了。
For a split second, I thought I saw a ghost.
有那么一瞬间，我以为我看到了鬼。
Not this
I will return split second.
Use this
I will return in a split second.
错误在于遗漏了介词"in"。英语中"split second"是名词短语，需用介词"in"表示"在瞬间内"；中文"瞬间"可直接作状语，导致母语迁移错误。
Not this
It was a split second decision.
Use this
It was a split-second decision.
错误在于遗漏了连字符。当"split second"用作形容词修饰名词时，应写作"split-second"，这是复合形容词的规范写法。
Choose the next layer that will help you use split second 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 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.
Focus on the distinctions below. Other candidates are kept compact until a reliable usage note is available.
Use split second naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
Collins 词频等级为 1，建议结合例句记忆，而不是只背中文释义。
Dictionary facts from DICTIONARY_API_DEV, ECDICT, WIKTIONARY.