world-wide navigational system

[world-wide navigational system]
[world-wide navigational system]

中文释义

un. 环球航行系统

单词分析

单词结构:

world-wide navigational system

字母数:30

记忆提示

🎯 重点记忆:

  • 单词拼写:world-wide navigational system
  • 核心含义:un. 环球航行系统