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dither over/about sth
dither 是不及物动词，后接 over/about 引出犹豫的对象；常暗示因焦虑而在小事上浪费时间。
She dithered over the menu for ages.
她在菜单前犹豫了好半天。
犹豫不决；紧张不安；慌乱
dithers — third person singular of dither
先理解核心含义，再看它在真实句子里的用法。
犹豫不决；紧张不安；慌乱
to be indecisive, nervous, or agitated; to act nervously or make a fuss
She dithered over the menu for ages.
她在菜单前犹豫了好半天。
犹豫不决；踌躇；迟疑；拖延
To be uncertain or unable to make a decision; to vacillate, hesitate, or delay.
紧张地做某事
To do something nervously.
对数字数据施以抖动算法以减小量化影响
To apply an algorithm to digital data to minimize the effects of quantization:
dither
Base
原形
dithers
3rd person
第三人称单数
dithering
-ing
现在分词
dithered
Past
过去式
dithered
Past participle
过去分词
He dithers over every choice.
他做每个选择都犹豫不决。
They dithered for hours before booking the flight.
他们犹豫了好几个小时才订航班。
I have dithered too long and missed the opportunity.
我犹豫太久，错过了机会。
dither 表示因不确定而犹豫不决或紧张不安；常用搭配 dither over/about/between。
Stop dithering and choose a restaurant; we're all hungry.
别犹豫了，选一家餐厅吧；我们大家都饿了。
He dithered for a few minutes before deciding to take the job.
他犹豫了几分钟才决定接受那份工作。
She tends to dither when faced with a difficult choice.
她面对艰难选择时往往会犹豫不决。
dither 是不及物动词，后接 over/about 引出犹豫的对象；常暗示因焦虑而在小事上浪费时间。
She dithered over the menu for ages.
她在菜单前犹豫了好半天。
用 between 时后接两个并列选项，表示在两者间拿不定主意；也可用 over/about 接具体事物。
He dithered between the two options.
他在两个选项间犹豫不决。
Not this
She dithered the decision for days.
Use this
She dithered over the decision for days.
dither 是不及物动词，后面不能直接跟宾语；表示“对……犹豫不决”时要用介词 over 或 about。
Not this
He is dither about which job to take.
Use this
He is dithering about which job to take.
dither 是动词，不是形容词；be 动词后要接现在分词 dithering 构成进行时，而不能直接用原形 dither 作表语。
Focus on the distinctions below. Other candidates are kept compact until a reliable usage note is available.
对……犹豫不决
The committee dithered over the proposal for weeks.
委员会对这个提案犹豫不决了几个星期。
在……之间犹豫不决
She dithered between the blue and the black dress.
她在蓝色和黑色连衣裙之间犹豫不决。
犹豫拖延
Policy makers have dithered and delayed instead of acting.
决策者一直在犹豫拖延，而不是采取行动。
慌乱不安；心神不宁
The announcement left everyone in a dither.
这个通知让大家慌乱不安。
别再犹豫了；别磨蹭了
Stop dithering and make up your mind.
别再犹豫了，快做决定吧。
心神不宁；慌乱
She was in a dither about which dress to wear.
她不知道该穿哪条裙子，心烦意乱。
犹豫拖延；磨磨蹭蹭
Stop dithering and dallying — we have to leave now.
别再磨蹭了——我们得走了。
磨蹭；瞎忙
He dithered around for hours without getting anything done.
他磨蹭了好几个小时，什么也没干成。
Use dithers naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
把 dither 记成「地抖」：紧张得连地都在抖，自然就「发抖、慌乱、犹豫不决」。
语域：mixed 常见场景：everyday speech、decision-making、opinion journalism 作动词时意为“犹豫不决”或“紧张不安”，通常用于口语和新闻评述，语气偏中性；作名词时多见于 in a dither 这类短语，表示“慌张、激动”，常用于日常对话，带一些非正式色彩。具体语气视语境而定。
押韵词：either (/ˈiːðə/)、neither (/ˈniːðə/)、breather (/ˈbriːðə/)，元音和 /ðə/ 与 dither 的 /iðə/ 一致。拼写相近但发音不同：wither (/ˈwɪðə/)、slither (/ˈslɪðə/)、other (/ˈʌðə/)，注意不要按拼写类推。
Dictionary facts from ECDICT, OCTANOVE, WIKTIONARY.