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：2026-01-29 00:45:38