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矽谷高中在上課期間鎖住學生的手機 https://blog.wongcw.com/2019/08/22/%e7%9f%bd%e8%b0%b7%e9%ab%98%e4%b8%ad%e5%9c%a8%e4%b8%8a%e8%aa%b2%e6%9c%9f%e9%96%93%e9%8e%96%e4%bd%8f%e5%ad%b8%e7%94%9f%e7%9a%84%e6%89%8b%e6%a9%9f/