1
a piece of fluff
There was a piece of fluff on her sweater.
她的毛衣上有一团绒毛。
绒毛；软毛；蓬松物；细毛
先理解核心含义，再看它在真实句子里的用法。
绒毛；软毛；蓬松物；细毛
Soft light material, such as fur, hair, feathers, or lint.
There was a piece of fluff on her sweater.
她的毛衣上有一团绒毛。
轻软蓬松的东西,尤指绒毛、毛发、羽毛
Anything light, soft or fuzzy, especially fur, hair, feathers.
任何轻软的绒毛材料
any light downy material
无关紧要的东西；肤浅之物
Anything inconsequential or superficial.
无价值或意义的事物
something of little value or significance
The cleaner removed the fluff from the wool sweater.
清洁工去掉了羊毛衫上的绒毛。
The article was full of fluff and lacked real substance.
那篇文章充满了无价值的内容，缺乏实质。
The kitten's fur was soft and covered in tiny fluffs.
小猫的毛柔软而覆盖着细小的绒毛。
There was a piece of fluff on her sweater.
她的毛衣上有一团绒毛。
The carpet was covered in fluff after the dog lay on it.
狗躺过之后，地毯上全是绒毛。
He brushed the fluff from his coat.
他刷掉大衣上的绒毛。
Not this
There are many fluffs on the carpet.
Use this
There is a lot of fluff on the carpet.
在英语中，fluff 通常作为不可数名词使用，表示‘软毛、绒毛’等质料，没有复数形式。因此，不能说 many fluffs，而应使用 a lot of fluff 或 much fluff。
Not this
I made a fluff in my exam.
Use this
I made a mistake in my exam.
虽然 fluff 可以表示‘错误’，但通常仅限于演艺或演讲等特定场合（如忘词），不适用于考试等一般性错误。用 mistake 更自然准确。
Focus on the distinctions below. Other candidates are kept compact until a reliable usage note is available.
一小团绒毛；毛茸茸的一团
The kitten was a tiny ball of fluff.
那只小猫是毛茸茸的一小团。
沾满绒毛的；满是绒毛的
His black coat was covered in fluff.
他的黑色外套上沾满了绒毛。
灰尘和绒毛
Old sweaters gathered dust and fluff in the attic.
旧毛衣在阁楼上积满了灰尘和绒毛。
无实质内容的报道；花絮文章
The magazine published a fluff piece about the celebrity's wedding.
该杂志刊登了一篇关于这位名人婚礼的花絮文章。
无关紧要的东西；肤浅的消遣
The book is a bit of fluff, but it's perfect for a rainy afternoon.
这本书虽然没什么深度，但很适合下雨的下午读。
无实质内容的捧场文章；吹捧性报道
That magazine article was a fluff piece about the actor's new house.
那篇杂志文章只是一篇关于这位演员新居的吹捧性报道。
华而不实；空话连篇
His presentation was all fluff and no substance.
他的展示华而不实，完全没有实质内容。
Use fluff naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
联想 fluffy（毛茸茸的）去掉 y 就是 fluff，指羽毛毛发那种轻软蓬松的绒毛；也可记‘空话 fluff’，像绒毛一样没分量。
语域：mixed 常见场景：日常聊天（宠物、衣物、枕头等）、非正式评价（文章、讲话、作品）、口语谈演出忘词或出错 fluff 作名词时，本义指轻软蓬松的绒毛或毛絮，通常多用于日常口语和一般书面语；引申指空洞、无实质的内容或指失误时，则比较常见于非正式语境。使用时应结合具体搭配和场合判断它指‘绒毛’还是‘空话/失误’。
与 fluff /flʌf/ 押韵的词包括 stuff、puff、rough、tough、enough，它们的重读元音和后面的辅音都是 /ʌf/。注意拼写：stuff、puff 与 fluff 同样以 -uff 结尾；rough、tough、enough 的 -ough 也读 /ʌf/。警告：laugh 拼写类似，但读音是 /læf/（美式），并不押韵；cough 读 /kɒf/，也不押韵。
Dictionary facts from ECDICT, WIKTIONARY, WORDNET.