“International Day of Older Persons”的概念、定义、翻译、参考文献-科学参考

单词	International Day of Older Persons
释义	International Day of Older Persons Encyclopedia 法学〔基本概念〕释 International Day of Older Persons国际老年人节由联合国设立的节日，旨在呼吁人类关注老龄化问题。
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科学参考收录了854744条科技类词条，基本涵盖了常见科技类参考文献及英语词汇的翻译，是科学学习和研究的有利工具。