child dependency ratio

英 [child dependency ratio]
美 [child dependency ratio]

中文释义

扶幼比

单词分析

单词结构：

child dependency ratio

字母数：22

记忆提示

🎯 重点记忆：

  • 单词拼写：child dependency ratio
  • 核心含义：扶幼比

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更新时间：2026-02-04 11:31:59