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age dependency ratio
age dependency ratio
英
[age dependency ratio]
美
[age dependency ratio]
中文释义
老年扶养比
单词分析
单词结构:
age dependency ratio
字母数:20
记忆提示
🎯 重点记忆:
单词拼写:age dependency ratio
核心含义:老年扶养比
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更新时间:2026-03-18 18:08:44