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on a whim
She decided to fly to Paris on a whim.
她一时冲动决定飞往巴黎。
一时的兴致；怪念头；冲动
先理解核心含义，再看它在真实句子里的用法。
一时的兴致；怪念头；冲动
a sudden desire or an odd, fanciful idea
She decided to fly to Paris on a whim.
她一时冲动决定飞往巴黎。
一时兴起或突然改变主意。
A fanciful impulse, or sudden change of idea.
一种鸟,即欧亚赤颈鸭。
A bird, the Eurasian wigeon.
由马力或蒸汽动力驱动的大型绞盘或立式滚筒,用于从矿井提升矿石或水等。
A large capstan or vertical drum turned by horse power or steam power, for raising ore or water, etc., from mines, or for other purposes.
She bought the expensive dress on a whim, without even trying it on.
她一时冲动买下了那条昂贵的裙子，甚至没有试穿。
On a whim, they decided to take a road trip to the coast.
一时兴起，他们决定开车去海边旅行。
He painted the room purple on a whim, but ended up loving it.
他一时心血来潮把房间刷成了紫色，但最后却很喜欢。
She decided to fly to Paris on a whim.
她一时冲动决定飞往巴黎。
常表达受制于某人的随意决定。
The schedule is always at the whim of the boss.
时间表总是由老板一时兴起决定。
I had a sudden whim to buy a motorcycle.
我突然心血来潮想买一辆摩托车。
Not this
He whimmed to buy a new car.
Use this
He had a whim to buy a new car.
whim是名词，不是动词，应使用‘have a whim’或‘on a whim’表示一时冲动。
Not this
She is a very whim girl.
Use this
She is a very whimsical girl.
whim是名词，其形容词形式是whimsical，表示‘异想天开的’。
Focus on the distinctions below. Other candidates are kept compact until a reliable usage note is available.
一时兴起
She decided to dye her hair blue on a whim.
她一时兴起决定把头发染成蓝色。
随意地
The manager changed the schedule at whim, confusing everyone.
经理随意更改时间表，把大家都弄糊涂了。
突如其来的怪念头
He bought a house in the countryside on a sudden whim.
他一时冲动在乡下买了栋房子。
命运的捉弄
By a whim of fate, they met again years later.
由于命运的捉弄，他们在多年后又相遇了。
时尚的突发潮流
Designers often follow the whim of fashion rather than functionality.
设计师们常常追随时尚的突发潮流，而非功能性。
一时兴起
She bought the dress on a whim.
她一时兴起买了那条裙子。
随心所欲地
He changes his mind at whim.
他随心所欲地改变主意。
命运的捉弄
They met by a whim of fate.
他们因命运的捉弄而相遇。
Use whim naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
联想“whim”为“微梦”——微小的、突如其来的怪念头。
语域：neutral 常见场景：on a whim、at the whim of、capricious decision 该词通常用于描述突发奇想或一时冲动，在书面语和口语中都常见，但更常出现在描述非理性或随性行为的语境中。
These words rhyme with whim: the stressed vowel /ɪ/ and following /m/ match. Beware of lookalikes like 'chime' (/tʃaɪm/), 'thyme' (/taɪm/), or 'rhyme' (/raɪm/) which have different vowel sounds.
Dictionary facts from ECDICT, WIKTIONARY, WORDNET.