sagging of vault

[sagging of vault]
[sagging of vault]

中文释义

隧拱下沉

单词分析

单词结构:

sagging of vault

字母数:16

记忆提示

🎯 重点记忆:

  • 单词拼写:sagging of vault
  • 核心含义:隧拱下沉