double-seal manhole cover

[double-seal manhole cover]
[double-seal manhole cover]

中文释义

复式人孔封盖

单词分析

单词结构:

double-seal manhole cover

字母数:25

记忆提示

🎯 重点记忆:

  • 单词拼写:double-seal manhole cover
  • 核心含义:复式人孔封盖