V2EX per

Per

释义 Definition

per 是介词,常表示“每……;按……计;每一(单位)”。常用于价格、比率、速度、频率等表达中。(也可见于拉丁语短语,如 per se,意为“本身”。)

发音 Pronunciation

/pr/

例句 Examples

The speed limit is 80 kilometers per hour.
限速是每小时80公里。

Employees are paid per project, which can be fairer when workloads vary significantly.
员工按项目计酬,当工作量差异很大时这可能更公平。

词源 Etymology

per 来自拉丁语 per,意为“通过、贯穿、按照、每”。后来进入英语,逐渐固定为表示“每(单位)/按……计”的常用介词,尤其常见于数字与单位搭配。

相关词 Related Words

文学作品中的用例 Literary Works

  • The Elements(Euclid):常见 “per” 的比例与“每单位”表述,用于几何与度量的论证语境。
  • On the Origin of Species(Charles Darwin):在描述观察与统计时,常用 “per” 表示频率或单位量(如 “per cent” 等表达)。
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