primary backing

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primary backing
英 [primary backing]
美 [primary backing]

中文释义

基础底布

单词分析

单词结构：

primary backing

字母数：15

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🎯 重点记忆：

  • 单词拼写：primary backing
  • 核心含义：基础底布

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更新时间：2026-09-20 20:07:51