safety frequency

英 [safety frequency]
美 [safety frequency]

中文释义

安全频率

单词分析

单词结构：

safety frequency

字母数：16

记忆提示

🎯 重点记忆：

  • 单词拼写：safety frequency
  • 核心含义：安全频率

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更新时间：2026-02-20 19:34:41