1
an aching in [body part]
aching 作名词时常与 in 搭配，后接身体部位。
She felt an aching in her shoulder.
她感到肩膀酸痛。
疼痛；酸痛
先理解核心含义，再看它在真实句子里的用法。
疼痛；酸痛
The feeling of an ache; a dull, persistent pain.
She felt an aching in her shoulder.
她感到肩膀酸痛。
The feeling of an ache; a dull pain.
一种持续的钝痛(通常中等强度)
a dull persistent (usually moderately intense) pain
After a long day of gardening, she felt a dull aching in her lower back.
经过一天的园艺劳作，她感到下背部隐隐作痛。
The constant aching behind his eyes made it hard to concentrate.
他眼窝后面持续的酸痛使他难以集中注意力。
The old injury still causes an aching in his knee when it rains.
下雨天时，旧伤仍会导致他膝盖酸痛。
aching 作名词时常与 in 搭配，后接身体部位。
She felt an aching in her shoulder.
她感到肩膀酸痛。
dull 形容隐约而持续的痛感。
There was a dull aching in his legs after the hike.
徒步结束后他的双腿隐隐作痛。
suffer from 语气较正式，常用于描述长期的疼痛不适。
The patient suffers from an aching in the lower back.
这位患者下背部持续酸痛。
Not this
I have aching in my legs.
Use this
I have an aching in my legs.
这里的 aching 是可数名词（复数形式为 achings），表示具体某处的一阵疼痛时，前面要用不定冠词 an；中文没有冠词，所以容易漏掉。
Not this
I have an aching on my back.
Use this
I have an aching in my back.
表示身体某个部位内部的疼痛，介词要用 in 而不是 on；汉语的“在”不区分内外位置，所以学习者常误用 on。
Focus on the distinctions below. Other candidates are kept compact until a reliable usage note is available.
隐隐的酸痛
After the hike, she felt a dull aching in her knees.
远足后，她感到膝盖隐隐酸痛。
肌肉酸痛
Muscular aching is common after intense exercise.
剧烈运动后肌肉酸痛很常见。
关节疼痛
The patient complained of aching in the joints.
病人主诉关节疼痛。
全身酸痛
The flu often causes generalized aching.
流感常引起全身酸痛。
持续性疼痛
She visited the doctor because of persistent aching in her shoulders.
她因肩膀持续疼痛去看医生。
令人痛苦的空虚感
After he moved away, she felt an aching void in her life.
他搬走之后，她感到生活中一片令人痛苦的空虚。
渴望做某事
The children are aching to open their Christmas presents.
孩子们渴望打开圣诞礼物。
悲伤的心
He left the meeting with an aching heart.
他带着一颗悲伤的心离开了会议。
Use aching naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
把 aching 拆成 ache（疼）+ -ing，想象疼痛一直持续不断，隐隐地酸痛。
语域：formal 常见场景：文学作品中对身体不适的描写、正式书面叙述或回忆性文字、需要体现持续隐痛的表达场合 名词 aching 表示持续的隐痛，通常用于书面或文学性描写；日常口语中更常用 ache 或动词形式。复数形式 achings 虽然存在，但实际较少使用。
All six words share the stressed /eɪkɪŋ/ ending and genuinely rhyme with aching. Warning: aching is spelled with -ch- but pronounced with /k/, so it does not rhyme with lookalikes ending in -tching, such as matching /ˈmætʃɪŋ/ or watching /ˈwɒtʃɪŋ/.
Dictionary facts from ECDICT, WIKTIONARY, WORDNET.