A wire a mile in length, if electrified at one end, becomes in the very instant electrified also at the other end.
一根一英里长的电线，如果在它的一端通电，电流立刻就会通向它另一端。
In those early cold war days, the 800-mile border between East and West Germany was lightly guarded and delineated by a few strands of barbed wire, and thousands fled to the West.
在冷战时代的早期，东西德之间长达800英里的边界并不戒备森严，只有一些带刺的铁丝网，因而成千上万的东德人逃到了西方。
This is the most expensive place to lay networks and the last mile of cable is faster than a copper wire.
最后一截网络铺设最为昂贵，有线电路在此段的速度快于铜线电路。
This is the most expensive place to lay networks and the last mile of cable is faster than a copper wire.
最后一截网络铺设最为昂贵，有线电路在此段的速度快于铜线电路。
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