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如何改善小朋友玩手機? https://billytang.com/blog/free-talk/%e5%a6%82%e4%bd%95%e6%94%b9%e5%96%84%e5%b0%8f%e6%9c%8b%e5%8f%8b%e7%8e%a9%e6%89%8b%e6%a9%9f%ef%bc%9f/