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backup safety device
backup safety device
英
[backup safety device]
美
[backup safety device]
中文释义
用安全设备,备用安全装置
单词分析
单词结构:
backup safety device
字母数:20
记忆提示
🎯 重点记忆:
单词拼写:backup safety device
核心含义:用安全设备,备用安全装置
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更新时间:2026-01-23 01:00:19