If you just walk outside, there are trillions of dollars that have been invested in infrastructure around the world, putting up wires to get power from where it's created to where it's used.
当你走出门，会发现在世界上 有亿万美元被投资于基础设施中 铺设电缆，将电力从其被创造的场所 输送到被使用的场所