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Conclusion: It is good to research the past to solve the problem of low birth rate in developed countries.
Related contents:
1. The video version of this episode: [Note 185] Researching the past is recommendable for solving the problem of low birth rate.
By Richard GongConclusion: It is good to research the past to solve the problem of low birth rate in developed countries.
Related contents:
1. The video version of this episode: [Note 185] Researching the past is recommendable for solving the problem of low birth rate.

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