V2EX cos

Cos

定义 Definition

cos(非正式,常写作 ’cos):因为(= because),多用于口语、对话或非正式书写。
也可指数学缩写:余弦cosine,三角函数)此义常见于公式与理工科语境。

发音 Pronunciation

/kz/(英式口语中常见,表示“因为”)
/kz/(美式中也可听到类似读法,表示“因为”)

例句 Examples

I can’t go, ’cos I’m busy.
我不能去,因为我很忙。

She stayed quiet, ’cos she didn’t want to start an argument in front of everyone.
她保持沉默,因为她不想在大家面前引发争吵。

词源 Etymology

来自 because 的口语省略形式(’cos),在英语口语与文学对白中常用来体现自然语气或人物的社会口音/身份特征。数学里的 cos 则是 cosine(余弦) 的缩写,源自拉丁语 cosinus(与“正弦/余弦”的命名传统相关)。

相关词 Related Words

文学作品 Literary Works

  • Pygmalion(George Bernard Shaw):对白中常见非正式口语缩略(包括类似 ’cos 的用法)以呈现口音与阶层差异。
  • Oliver Twist(Charles Dickens):狄更斯常用非标准拼写与缩略来再现人物口语(可见 ’cos 一类形式)。
  • Trainspotting(Irvine Welsh):以强烈口语化书写著称,常出现类似 ’cos 的非正式表达以贴近真实对话。
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