defective sleeper

英 [defective sleeper]
美 [defective sleeper]

中文释义

失效枕木

单词分析

单词结构：

defective sleeper

字母数：17

记忆提示

🎯 重点记忆：

  • 单词拼写：defective sleeper
  • 核心含义：失效枕木

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更新时间：2026-03-17 13:37:11