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a ditty about sth
about 后接歌曲的主题；ditty 指简短而简单的歌曲，常带轻松、亲切的语气。
She hummed a cheerful ditty about the sea.
她哼了一首关于大海的轻快小曲。
小调；小曲
先理解核心含义，再看它在真实句子里的用法。
小调；小曲
a short simple song or the words of a poem meant to be sung
She hummed a cheerful ditty about the sea.
她哼了一首关于大海的轻快小曲。
短小简单的诗歌或歌曲
A short, simple verse or song.
谚语或话语,尤指简短且常重复的
A saying or utterance, especially one that is short and frequently repeated.
She hummed a cheerful ditty while washing the dishes.
她边洗碗边哼着一支欢快的小曲。
The children sang a little ditty about the weather.
孩子们唱了一首关于天气的小短歌。
He played an old folk ditty on his guitar.
他用吉他弹了一首古老的民谣小调。
about 后接歌曲的主题；ditty 指简短而简单的歌曲，常带轻松、亲切的语气。
She hummed a cheerful ditty about the sea.
她哼了一首关于大海的轻快小曲。
sing 是常用搭配；也可以说 hum/whistle a ditty。ditty 为可数名词，复数形式为 ditties。
The children sang a simple ditty at the school concert.
孩子们在学校音乐会上唱了一首简单的小曲。
little 在这里不是强调尺寸，而是表示“简单、不起眼”，带有亲切语气。
He wrote a little ditty for his daughter's birthday.
他为女儿生日写了一首小曲。
Not this
The band played three dittys at the party.
Use this
The band played three ditties at the party.
ditty 的复数形式是 ditties，不是 dittys。以辅音字母加 y 结尾的名词变复数时要把 y 改为 ies。
Not this
She hummed a dirty while cooking.
Use this
She hummed a ditty while cooking.
ditty 意为‘小曲、小调’，而 dirty 是形容词‘脏的’；两者拼写和读音相近，容易混淆。此处表达的是‘哼一首小曲’，应用名词 ditty。
Focus on the distinctions below. Other candidates are kept compact until a reliable usage note is available.
一首小曲
She hummed a little ditty while cooking dinner.
她做晚饭时哼着一首小曲。
唱一首小调
The old sailor sang a ditty about his days at sea.
老水手唱了一首关于他海上岁月的小调。
一首朗朗上口的小曲
That catchy ditty has been stuck in my head all morning.
那首朗朗上口的小曲在我脑海里挥之不去，一上午都甩不掉。
一首民间小调
The students performed a folk ditty from their hometown.
学生们演唱了一首来自家乡的民间小调。
一首简单的小曲
It's a simple ditty that even young children can learn quickly.
这是一首简单的小曲，连小孩子都能很快学会。
一首关于杰克和黛安的小曲，两个在美国腹地长大的孩子。
Opening line of John Mellencamp's 1982 hit 'Jack & Diane'; it introduces the story of teenage lovers in small-town America.
约翰·梅伦坎普1982年热门歌曲《Jack & Diane》的开头歌词，引出了美国小镇少年恋人之间的故事。
Use ditty naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
把 ditty 联想成哼唱时轻快的“嘀嘀”声，短小简单的小曲就这样蹦出口。
语域：informal 常见场景：日常聊天、随笔、音乐漫谈 ditty 通常指简短、轻快的小曲，多用于非正式或轻松语气的场合，比较常见于日常聊天、随笔或略带幽默的描写中，正式写作中较少使用。
复数形式为 ditties。
Dictionary facts from ECDICT, WIKTIONARY.