back-up protection
查询英语单词中文释义、音标、发音和例句。
back-up protection
英
[back-up protection]
美
[back-up protection]
中文释义
后备保护
单词分析
单词结构:
back-up protection
字母数:18
记忆提示
🎯 重点记忆:
- 单词拼写:back-up protection
- 核心含义:后备保护
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更新时间:2026-09-01 08:55:47