ring-down-toll line

英 [ring-down-toll line]
美 [ring-down-toll line]

中文释义

振铃式直接呼叫长途线

单词分析

单词结构：

ring-down-toll line

字母数：19

记忆提示

🎯 重点记忆：

  • 单词拼写：ring-down-toll line
  • 核心含义：振铃式直接呼叫长途线

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更新时间：2026-02-01 09:41:51