primary highway system

英 [primary highway system]
美 [primary highway system]

中文释义

一级公路网

单词分析

单词结构：

primary highway system

字母数：22

记忆提示

🎯 重点记忆：

  • 单词拼写：primary highway system
  • 核心含义：一级公路网

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更新时间：2026-01-29 11:53:41