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tremulous + noun
常用来形容因紧张或恐惧而颤抖的声音、手或笑容。
She spoke in a tremulous voice.
她说话的声音颤抖着。
（声音）颤抖的；发抖的
先理解核心含义，再看它在真实句子里的用法。
（声音）颤抖的；发抖的
(of the voice) quivering, as from weakness or fear
She spoke in a tremulous voice.
她说话的声音颤抖着。
颤抖的,发抖的。
Trembling, quivering, or shaking.
胆怯的,犹豫不决的；缺乏自信的。
Timid, hesitant; lacking confidence.
Her tremulous voice showed how nervous she was.
她颤抖的声音表明她有多紧张。
He answered the interviewer in a tremulous whisper, barely audible.
他用颤抖的低语回答面试官，几乎听不见。
Her voice grew tremulous as she described the frightening experience.
在描述那次可怕的经历时，她的声音变得颤抖起来。
常用来形容因紧张或恐惧而颤抖的声音、手或笑容。
She spoke in a tremulous voice.
她说话的声音颤抖着。
介词 with 引出颤抖的原因。
His hands were tremulous with fear.
他的双手因恐惧而发抖。
tremulous 也可用在系动词后作表语。
Her voice sounded tremulous when she answered.
她回答时声音听起来颤抖。
Not this
Her voice tremulous when she spoke.
Use this
Her voice was tremulous when she spoke.
汉语中形容词可直接作谓语（如“她的声音颤抖”），但英语的系表结构必须有系动词，因此需加was。
Not this
He answered tremulous.
Use this
He answered tremulously.
修饰动词answered应用副词tremulously，而tremulous是形容词，只能修饰名词或作表语，不能修饰动词。
Focus on the distinctions below. Other candidates are kept compact until a reliable usage note is available.
颤抖的声音
She spoke in a tremulous voice.
她用颤抖的声音说话。
颤抖的双手
His tremulous hands betrayed his nervousness.
他颤抖的双手暴露了他的紧张。
怯生生的微笑
She gave a tremulous smile as she accepted the award.
她领奖时露出了一个怯生生的微笑。
颤抖的语气
He asked in a tremulous tone if the news was true.
他用颤抖的语气问这个消息是否属实。
颤抖的低语
"I'm afraid," she said in a tremulous whisper.
“我害怕，”她颤抖地低语道。
颤抖的嘴唇
Her tremulous lip showed she was about to cry.
她颤抖的嘴唇表明她快要哭了。
Use tremulous naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
tremulous 以 trem 开头，联想到 tremble（发抖），-ulous 像“多…的”，合起来就是声音发抖的。
语域：formal 常见场景：文学作品、正式描写 该词多用于文学作品或正式描写，形容声音或身体因恐惧、虚弱而颤抖；日常口语中较少使用，通常更常说 trembling 或 shaky。
常修饰 voice，指因虚弱或恐惧而颤抖；也可形容身体发抖或人胆怯。
Dictionary facts from ECDICT, WIKTIONARY.