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Classified

军事或政府语境中 classified information 为保密信息,与 top secret 等级相关。一般语境 classified documents 指已归类的文件。复数名词 classifieds 常见于报纸“分类广告”栏。

  1. “The report contains classified material.” (报告含机密内容。)
  2. “Samples were classified by size and color.” (样本按大小和颜色分类。)
  3. “She found the apartment through online classifieds.” (她通过网上分类广告找到了公寓。)

“class” 来自拉丁语 classis(等级、类别),与 classify(分类)同源;classified 为 classify 的过去分词。

class + -ify(使……化)+ -ed;名词 classification(分类),形容词 classified 与 classifiable。

美国 “classified briefing” 指涉密简报;职场 “classified ads” 招聘租房仍常见;数据科学 “classified dataset” 指标好类别的数据集。

  • 固定搭配: “classified information” (机密信息), “classified ad” (分类广告), “declassified” (已解密)

class 是“类别”,classified 是“被划入某类”的——机密文件也被划入“不可公开”那一类。

“He could not discuss classified details, even with close friends.” (即便是好友,他也不能谈论机密细节。)