train order signal
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train order signal
英
[train order signal]
美
[train order signal]
中文释义
行车命令号志
单词分析
单词结构:
train order signal
字母数:18
记忆提示
🎯 重点记忆:
- 单词拼写:train order signal
- 核心含义:行车命令号志
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更新时间:2026-09-01 22:42:20