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have a cramp in [body part]
描述突然的肌肉痉挛。
I have a cramp in my leg.
我腿抽筋了。
抽筋；肌肉痉挛
先理解核心含义，再看它在真实句子里的用法。
抽筋；肌肉痉挛
A painful, involuntary contraction of a muscle; also a similar pain without a noticeable contraction.
I have a cramp in my leg.
我腿抽筋了。
肌肉无法控制的疼痛性痉挛；(有时)无明显收缩时的类似疼痛。
A painful contraction of a muscle which cannot be controlled; (sometimes) a similar pain even without noticeable contraction.
一种痛苦且不自主的肌肉收缩
a painful and involuntary muscular contraction
限制或收缩之物。
That which confines or contracts.
用于在粘合时固定木材的夹具
a clamp for holding pieces of wood together while they are glued
He got a cramp in his leg while swimming.
他游泳时腿抽筋了。
She often suffers from menstrual cramps.
她经常痛经。
I woke up with a cramp in my foot.
我醒来时脚抽筋了。
描述突然的肌肉痉挛。
I have a cramp in my leg.
我腿抽筋了。
cramps 常以复数形式表示多次痉挛或腹部绞痛。
She got cramps while swimming.
她游泳时抽筋了。
Many women suffer from cramps during menstruation.
许多女性在经期会痛经。
Not this
I have cramp in my leg.
Use this
I have a cramp in my leg.
英语中cramp是可数名词，表示‘一次痉挛’时需加不定冠词a；中文名词没有冠词，容易遗漏。
Not this
I got a cramp on my leg.
Use this
I got a cramp in my leg.
痉挛发生在肌肉内部，因此介词应用in而非on；中文用‘在腿上’可能导致介词误用。
Focus on the distinctions below. Other candidates are kept compact until a reliable usage note is available.
肌肉痉挛；肌肉抽筋
A sudden muscle cramp in his calf made him grimace.
他的小腿突然肌肉痉挛，使他做了个鬼脸。
腿抽筋；腿部痉挛
Long-distance runners sometimes get leg cramps after a race.
长跑运动员有时赛后会出现腿部抽筋。
胃痉挛；肚子痛
Eating too quickly can give you stomach cramps.
吃得太快会引起胃痉挛。
痛经；经期痉挛
She used a hot-water bottle to relieve her menstrual cramps.
她用热水袋缓解痛经。
书写痉挛
He got writer's cramp from taking notes all day.
他因整天记笔记而出现了书写痉挛。
发生抽筋；抽筋
If you have a cramp, stop exercising and stretch gently.
如果抽筋了，就停止运动并轻轻拉伸。
妨碍某人施展才能；使某人放不开手脚
Don't bring your little brother along; he'll cramp your style.
别带你弟弟一起去，他会让你放不开手脚。
书写痉挛；手部因长时间书写而抽筋
After writing three essays in a row, she got writer's cramp.
连续写了三篇文章后，她出现了书写痉挛。
Use cramp naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
cramp 含 cram（塞满），肌肉骤然收紧如被塞满→抽筋；夹钳也是用力夹紧。记住“紧”即可。
语域：mixed 常见场景：日常谈论肌肉抽筋或疼痛、木工、金属加工等专业操作场景 cramp 作名词时有两个常见使用领域：“抽筋”多用于日常生活和医疗描述，语气中性；而“夹具、夹钳”等意思通常出现在木工、金属加工等专业语境中，比较正式。实际使用时语域混合，需根据上下文判断。
常与in连用表示部位，如a cramp in the leg
Dictionary facts from ECDICT, WIKTIONARY, WORDNET.