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back-up line
back-up line
英
[back-up line]
美
[back-up line]
中文释义
[经] 后备额度, 预备限额
单词分析
单词结构:
back-up line
字母数:12
记忆提示
🎯 重点记忆:
单词拼写:back-up line
核心含义:[经] 后备额度, 预备限额
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更新时间:2026-01-31 09:11:12