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sb's voice quavers (with sth)
quaver 作不及物动词时，主语常为 voice，表示声音因情绪而颤抖。
Her voice quavered with emotion.
她的声音因激动而颤抖。
颤声；颤抖
先理解核心含义，再看它在真实句子里的用法。
颤声；颤抖
a tremulous sound
Her voice quavered with emotion.
她的声音因激动而颤抖。
A trembling shake.
颤抖的声音
a tremulous sound
A trembling of the voice, as in speaking or singing.
时值为全音符八分之一的音符
a musical note having the time value of an eighth of a whole note
There was a quaver in her voice as she thanked the audience.
她感谢观众时，声音里有一丝颤抖。
The old man's words came out with a slight quaver.
老人说出的话带着轻微的颤抖。
I heard a quaver in his singing that suggested he was nervous.
我听到他唱歌时有一丝颤音，表明他很紧张。
quaver 作不及物动词时，主语常为 voice，表示声音因情绪而颤抖。
Her voice quavered with emotion.
她的声音因激动而颤抖。
quaver sth out 表示颤抖地说出；若宾语为代词，须置于 out 之前。
He quavered out a reply.
他颤抖着说出回答。
名词 quaver 常用单数，指说话时声音的颤抖。
There was a quaver in her voice.
她的声音里有一丝颤抖。
Not this
She spoke in a quaver voice.
Use this
She spoke in a quavering voice.
quaver 是动词或名词，不能直接修饰 voice；表示“颤抖的嗓音”应用现在分词 quavering 作定语。
Not this
He said in a quaver.
Use this
He said with a quaver.
表示“以颤抖的声音”时，名词 quaver 前搭配介词 with，而不是 in；in 常用于 in a quavering voice 等结构。
Focus on the distinctions below. Other candidates are kept compact until a reliable usage note is available.
声音颤抖
Her voice quavered when she heard the news.
她听到这个消息时声音颤抖。
声音中的一丝颤抖
I noticed a quaver in his voice as he answered.
我注意到他回答时声音里有一丝颤抖。
用颤抖的声音
The old man told the story in a quavering voice.
老人用颤抖的声音讲述了这个故事。
因激动而声音发抖
She quavered with emotion as she read the letter.
她读信时因激动而声音发抖。
（说话时）声音颤抖
There was a quaver in her voice as she spoke about the accident.
她说到那次事故时声音有些颤抖。
Use quaver naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
联想：quake（发抖）去掉k，再搭配waver（晃动）的开头——声音发抖晃动，就是quaver（颤声）。
语域：formal 常见场景：literary narrative、formal speech、emotional testimony 该义项（名词，颤声）多用于书面或正式语境，尤其在文学或新闻报道中描写人物声音因强烈情绪而颤抖。日常口语较少直接使用 quaver，更常说 voice trembled 或 a tremble in one’s voice。
Rhymes with target: waver, saver, flavor, shaver (all end with /eɪvɚ/). Note: clever and never look similar but have /ɛvɚ/, so they do not rhyme.
Dictionary facts from ECDICT, WIKTIONARY.