By the way, if power is lost, go and unplug all the electric devices in the house.

顺便说一句，如果停电了，请拔掉房子里的所有电气设备。

Stephen Hawking used an electric wheelchair to get around, as he had a motor neurone disease, and he also used an electric device to generate speech when he became unable to talk.

史蒂芬·霍金患有运动神经元疾病，因此使用电动轮椅出行，当他无法说话时，他还使用电动装置来产生语音。