approach obstruction
查询英语单词中文释义、音标、发音和例句。
approach obstruction signal
英
[approach obstruction signal]
美
[approach obstruction signal]
中文释义
遮断预告信号机
单词分析
单词结构:
approach obstruction signal
字母数:27
记忆提示
🎯 重点记忆:
- 单词拼写:approach obstruction signal
- 核心含义:遮断预告信号机
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更新时间:2026-09-03 19:55:00