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首页 > 英汉词典 > back-up safety device

back-up safety device

英 [back-up safety device]
美 [back-up safety device]

中文释义

后备安全设备

单词分析

单词结构:

back-up safety device

字母数:21

记忆提示

🎯 重点记忆:

  • 单词拼写:back-up safety device
  • 核心含义:后备安全设备

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更新时间:2026-01-30 01:10:20

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