echo checking

英 [echo checking]
美 [echo checking]

中文释义

回波检验

单词分析

单词结构：

echo checking

字母数：13

记忆提示

🎯 重点记忆：

  • 单词拼写：echo checking
  • 核心含义：回波检验

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更新时间：2026-01-25 00:21:21