周说：“当你的手机收到信息：电压已降为零，需要替换电池。
"You might get a message on your phone telling you that the voltage has dropped to zero, so the battery needs to be replaced, " Zhuo said.
无线键盘电池电量极低。请立即替换电池以使无线键盘继续工作。
The wireless keyboard battery level is critically low. Replace the batteries soon so the wireless keyboard will continue to function.
简单的地下安装不需要很深的挖掘，当需要替换电池时可提供快速简易的访问。
Simple in-ground installation requires no major excavation and provides quick and easy access for battery replacement when required.
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