frequency of back-up

英 [frequency of back-up]
美 [frequency of back-up]

中文释义

备用频率

单词分析

单词结构：

frequency of back-up

字母数：20

记忆提示

🎯 重点记忆：

  • 单词拼写：frequency of back-up
  • 核心含义：备用频率

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更新时间：2026-01-31 00:56:50