盲测：谁译得最好？
使用前请确保设备已充满电，长按电源键三秒开机，红灯闪烁表示电量不足。
译文 A
Ensure the device is fully charged before use, press and hold the power button for three seconds to turn on. The red light blinking indicates low battery.
译文 B
Before use, ensure the device is fully charged. Press and hold the power button for three seconds to turn it on. A flashing red light indicates low battery.
译文 C
Before use, please ensure that the device is fully charged. Press and hold the power button for three seconds to turn it on. A flashing red light indicates that the battery is low.