retention standards

英 [retention standards]
美 [retention standards]

中文释义

存留标准

单词分析

单词结构：

retention standards

字母数：19

记忆提示

🎯 重点记忆：

  • 单词拼写：retention standards
  • 核心含义：存留标准

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更新时间：2026-01-31 05:16:08