manually operated signal

[manually operated signal]
[manually operated signal]

中文释义

人工操纵交通信号

单词分析

单词结构:

manually operated signal

字母数:24

记忆提示

🎯 重点记忆:

  • 单词拼写:manually operated signal
  • 核心含义:人工操纵交通信号