manhole ring

英 [manhole ring]
美 [manhole ring]

中文释义

人孔加强圈

单词分析

单词结构：

manhole ring

字母数：12

记忆提示

🎯 重点记忆：

  • 单词拼写：manhole ring
  • 核心含义：人孔加强圈

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更新时间：2026-01-29 20:47:59