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elderly dependency ratio
elderly dependency ratio
英
[elderly dependency ratio]
美
[elderly dependency ratio]
中文释义
(退休)高龄者(被)赡养率
单词分析
单词结构:
elderly dependency ratio
字母数:24
记忆提示
🎯 重点记忆:
单词拼写:elderly dependency ratio
核心含义:(退休)高龄者(被)赡养率
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更新时间:2026-02-02 18:26:11