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https://kansir.com/2016/02/25/%e9%80%99%e7%a8%ae%e6%9c%89-usb-%e7%9a%84%e9%9b%bb%e6%8f%92%e5%ba%a7%e7%9c%9f%e4%bf%82%e5%a5%bd%e6%96%b9%e4%be%bf/
這種有 USB 的電插座真係好方便