answer signal with no charge

[answer signal with no charge]
[answer signal with no charge]

中文释义

[通信] 不计费应答信号

单词分析

单词结构:

answer signal with no charge

字母数:28

记忆提示

🎯 重点记忆:

  • 单词拼写:answer signal with no charge
  • 核心含义:[通信] 不计费应答信号