V2EX alertness

Alertness

释义 Definition

alertness(名词):警觉性;警惕状态;反应敏捷。指对周围情况保持清醒注意、能迅速察觉变化或危险的能力。(也可用于形容精神清醒的状态。)

发音 Pronunciation (IPA)

/ltns/

例句 Examples

Her job requires constant alertness.
她的工作需要持续的警觉。

Despite the long night, his alertness allowed him to notice a small but important change in the data.
尽管熬了一整夜,他的警觉性仍让他注意到了数据中一个细微却关键的变化。

词源 Etymology

alertness 来自形容词 alert(警觉的、机敏的)加名词后缀 -ness(表示“……的状态/性质”)。alert 常被认为与早期近代英语中表示“警戒、准备行动”的用法有关,逐渐引申为“精神上保持警惕、反应快”的含义;加上 -ness 后就形成“警觉性/警觉状态”的抽象名词。

相关词 Related Words

文学作品 Literary Works

  • Alice's Adventures in Wonderland(Lewis Carroll):作品中多处以“保持警觉/注意”的语境描写人物在奇异情境中的反应(常见表达为 be alert 或类似措辞,与 alertness 的概念一致)。
  • The Hound of the Baskervilles(Arthur Conan Doyle):侦探叙事强调观察与警觉这一能力(文本中常以 alertvigilant 等词呈现,与 alertness 的语义场高度相关)。
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