我们需要它来耕种、洗涤、提供电力、控制火灾，最重要的是——供我们饮用。
We need it to farm, to wash, to provide power, to control fires and—most importantly—to drink.
电力和汽油的成本将会大幅上升，模型建造者说，但是有正确的政策表明，这些需要不会导致我们的生活方式发生大的变化。
Electricity and petrol costs will rise significantly, but with the right policies in place, say the modellers, this need not lead to big changes in our lifestyle.
时至今日 没人会说”我想连接到一个千万伏特的发电站”—取而代之是我们约定俗成地想电力本来就会按需为我们需要进入的每一栋房屋的每一个房间准备就绪.
Today, nobody says "I need to connect to a megawatt power station" - instead we assume that electricity will be available on demand in almost every room of every building we visit.
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