话不是这么说，就算是一下子也不应该，没人在却开着电灯电扇，不但浪费电，而且很危险啊，万一电线走火怎么办？他们不要命，别人还要。
huàbùshì zhèmeshuō ，jiùsuàn shì yīxiàzi yě bù yīnggāi ，méi rén zài què kāi zhe diàndēng diànshàn ，bùdàn làngfèi diàn ，érqiě hěn wēixiǎn ā ，wànyī diànxiàn zǒuhuǒ zěnme bàn ？tāmen bù yàomìng ，biérén hái yào 。
You can't say that, even if they're just going out for a little while they shouldn't leave the lights and the fan on, it's not only a waste of electricity, it's also dangerous, what if the wires catch fire? If they don't care if they live or die, other do.