1
be a so-and-so
非正式，含贬义，指令人讨厌或鄙视的人。
He's a real so-and-so for saying that.
他说那种话，真是个卑鄙的家伙。
某某人, 某某事
so-and-sos — plural of so-and-so
先理解核心含义，再看它在真实句子里的用法。
某某人, 某某事
a person who is deemed to be despicable or contemptible
He's a real so-and-so for saying that.
他说那种话，真是个卑鄙的家伙。
用于人或物的占位符名称,当名字未知时使用；一个普通的人或物。
A placeholder name for a person or thing, used when a name is not known; a generic person or thing.
被视为卑鄙或可鄙的人
a person who is deemed to be despicable or contemptible
I don't want to work with that so-and-so ever again; he took all the credit.
我再也不想和那个某某人一起工作了；他把所有功劳都抢走了。
She called him a lazy so-and-so after he failed to meet the deadline.
他在截止日期前未能完成任务后，她骂他是个懒惰的某某人。
Those so-and-sos in accounting always find a way to delay payments.
财务部的那帮某某人总有办法拖延付款。
非正式，含贬义，指令人讨厌或鄙视的人。
He's a real so-and-so for saying that.
他说那种话，真是个卑鄙的家伙。
I can't believe that so-and-so took my parking spot.
我真不敢相信那个家伙占了我的停车位。
so-and-so's 是所有格形式，后接名词。
I'm tired of listening to so-and-so's complaints.
我听够了某某人的抱怨。
Not this
The movie was so-and-so.
Use this
The movie was so-so.
so-and-so是名词，指人，不能用作形容词表示“一般般”；意为“平平”的短语是so-so。
Not this
Those so-and-so are always late.
Use this
Those so-and-sos are always late.
so-and-so的复数形式是so-and-sos，需加-s，不能保持原形。
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Focus on the distinctions below. Other candidates are kept compact until a reliable usage note is available.
Use so-and-sos naturally, then get feedback on meaning, tone, grammar, and phrasing.
Revisit a common error or keep this word in your review list.
常用单数，指代不愿指名的人
Collins 词频等级为 1，建议结合例句记忆，而不是只背中文释义。
页面下方列出了常见词形变化。学习时注意它们在句子中的语法位置。
Dictionary facts from ECDICT, WIKTIONARY.