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grade crossing signal
grade crossing signal
英
[grade crossing signal]
美
[grade crossing signal]
中文释义
道口信号;道口信号机
单词分析
单词结构:
grade crossing signal
字母数:21
记忆提示
🎯 重点记忆:
单词拼写:grade crossing signal
核心含义:道口信号;道口信号机
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更新时间:2026-04-10 22:32:52