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swelling in/on/at + body part
常用介词in/on/at表示肿胀发生的身体部位。
She noticed a painful swelling on her ankle.
她注意到脚踝上有一个疼痛的肿胀处。
肿块；肿胀处；隆起物
先理解核心含义，再看它在真实句子里的用法。
肿块；肿胀处；隆起物
A swollen or bulging part, especially on the body.
She noticed a painful swelling on her ankle.
她注意到脚踝上有一个疼痛的肿胀处。
多指身体上因受伤或疾病而肿起的包块
肿胀的状态
The state of being swollen.
异常的隆起或局部肿大
an abnormal protuberance or localized enlargement
任何肿胀的东西,尤其是身体的异常肿胀部分
Anything swollen, especially any abnormally swollen part of the body.
从周围环境中凸出或伸出的物体
something that bulges out or is protuberant or projects from its surroundings
After the insect bite, the swelling on her arm went down within a day.
被昆虫叮咬后，她手臂上的肿胀一天内就消退了。
The doctor said the swelling in his knee was caused by a minor injury.
医生说他的膝盖肿胀是由轻微受伤引起的。
Ice packs can help reduce swelling after a sports injury.
冰袋有助于减轻运动损伤后的肿胀。
常用介词in/on/at表示肿胀发生的身体部位。
She noticed a painful swelling on her ankle.
她注意到脚踝上有一个疼痛的肿胀处。
He developed a swelling under his arm.
他腋下出现了一个肿块。
常用动词subside或go down描述肿胀消退。
The swelling subsided after applying ice.
冰敷后肿胀消退了。
A large swelling appeared on his forehead.
他额头上出现了一个大肿块。
Not this
I have a swelling leg.
Use this
I have a swollen leg.
swelling 是名词，意为“肿胀处”，而描述“肿的”状态应使用形容词 swollen。误将名词用作形容词导致语法错误。
Not this
I have swelling on my arm.
Use this
I have a swelling on my arm.
swelling 作为可数名词，表示单个肿胀处时需要加不定冠词 a。缺少冠词不符合英语可数名词单数用法。
Focus on the distinctions below. Other candidates are kept compact until a reliable usage note is available.
消肿；减轻肿胀
Put an ice pack on it to reduce the swelling.
用冰袋敷在上面以减轻肿胀。
肿胀消退
The swelling subsided after a few days.
几天后肿胀消退了。
轻度肿胀
There was mild swelling around the wound.
伤口周围有轻度肿胀。
肿胀和瘀伤
She had swelling and bruising on her ankle.
她的脚踝肿胀并有瘀伤。
Use swelling naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
想象手指被蜜蜂蜇后慢慢鼓起一个包，又胀又疼，swelling就是这种“肿胀、隆起”的状态。
语域：neutral 常见场景：就医描述症状、日常谈论受伤部位 该词属于中性用语，通常用于描述身体部位因受伤或发炎而肿胀，也可指一般的隆起物。它在就医和日常口语中都比较常见，正式程度适中。
swelling作可数名词时指具体的肿块，作不可数名词时指肿胀状态
Dictionary facts from ECDICT, WIKTIONARY.