up-and-down locks

英 [up-and-down locks]
美 [up-and-down locks]

中文释义

安全锁

单词分析

单词结构：

up-and-down locks

字母数：17

记忆提示

🎯 重点记忆：

  • 单词拼写：up-and-down locks
  • 核心含义：安全锁

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更新时间：2026-02-01 18:41:17