1
a spasm in [body part]
常与不定冠词 a 连用，表示身体某部位单次痉挛；反复发作时常用复数 spasms。
He felt a sudden spasm in his calf.
他感到小腿突然抽搐了一下。
痉挛；抽筋
先理解核心含义，再看它在真实句子里的用法。
痉挛；抽筋
a painful, involuntary muscular contraction
He felt a sudden spasm in his calf.
他感到小腿突然抽搐了一下。
痛苦且不自主的肌肉收缩
a painful and involuntary muscular contraction
空腔器官(如血管)的突然收缩
(pathology) sudden constriction of a hollow organ (as a blood vessel)
A sudden spasm in his back made him stop lifting the box.
他背部突然一阵痉挛，使他停下了搬箱子的动作。
She felt a brief spasm of pain in her leg while running.
跑步时她感到腿部短暂地抽了一下筋。
The doctor said the muscle spasm would go away after rest.
医生说休息后肌肉痉挛就会消失。
常与不定冠词 a 连用，表示身体某部位单次痉挛；反复发作时常用复数 spasms。
He felt a sudden spasm in his calf.
他感到小腿突然抽搐了一下。
用于医学术语，后接具体的空腔器官（如血管、肠道）名称。
A spasm of the coronary artery can cause chest pain.
冠状动脉痉挛可引起胸痛。
此短语中 spasm 前不加冠词，表示处于痉挛状态。
His back was in spasm.
他的背部在痉挛。
Not this
I have spasm in my back.
Use this
I have a spasm in my back.
spasm 是可数名词，指一次具体的肌肉痉挛，因此前面需要加不定冠词 a，不能像不可数名词一样单独使用。
Not this
I have a spasm on my back.
Use this
I have a spasm in my back.
表示身体内部肌肉或器官的痉挛时，介词用 in，不用 on；on 一般用于体表位置。
Focus on the distinctions below. Other candidates are kept compact until a reliable usage note is available.
肌肉痉挛
A sudden muscle spasm in his leg made him stop running.
他的腿突然肌肉痉挛，使他停止了跑步。
疼痛性痉挛
She felt a painful spasm in her back as she lifted the box.
她搬箱子时感到背部一阵疼痛性痉挛。
背部痉挛
A back spasm kept him in bed for two days.
背部痉挛让他卧床两天。
面部痉挛
The patient reported a facial spasm that lasted several seconds.
患者报告面部痉挛持续了几秒钟。
一阵咳嗽
He was seized by a spasm of coughing after inhaling the dust.
他吸入灰尘后猛地一阵咳嗽。
一阵突然的大笑
The joke sent a spasm of laughter through the room.
这个笑话让房间里爆发出一阵大笑。
一阵突如其来的怒火
He felt a spasm of anger when he saw the damage.
他看到损坏时感到一阵怒火。
一阵剧烈的咳嗽
Her speech was interrupted by a spasm of coughing.
她的演讲被一阵剧烈的咳嗽打断。
Use spasm naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
记法：spasm 开头 spas 像肌肉猛一抽的‘嘶’声，疼痛且不自主。
语域：mixed 常见场景：medical/health settings、everyday conversation 多用于医学或健康相关讨论，日常口语中也比较常见；正式程度随语境变化，一般无明显口语或书面语限制。
常用于 a spasm of + 表示身体部位或情绪的名词。
Dictionary facts from AI_FALLBACK, ECDICT, WORDNET.