When you're working on a file, it's saving constantly to RAM but also hopefully to disc, the hard disk so you don't actually lose it if the power goes off.

当你打开一个文件，它不断地保存在内存中，但对于光盘，硬盘，当你断开电源的时候，数据不会丢失。

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Their lives as they live them would not function without electricity, but it is a rare man or woman who, when the power goes off, knows how to look for a burned-out fuse and replace it.

没有电，他们每日的生活便无法运行。然而很少有一个男士或者女士在断电时知道该怎样找出熔断的保险丝并把它换掉。

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