back-up device
查询英语单词中文释义、音标、发音和例句。
back-up device
英
[back-up device]
美
[back-up device]
中文释义
备用装置
单词分析
单词结构:
back-up device
字母数:14
记忆提示
🎯 重点记忆:
- 单词拼写:back-up device
- 核心含义:备用装置
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更新时间:2026-08-30 05:47:45