当他急速撞向一个灯柱、扯断了通电的电线之后，几千伏的电流涌过他的汽车。
Thousands of volts surged through his car after he careered into a lamp post, ripping out live wires.
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。
A wire a mile in length, if electrified at one end, becomes in the very instant electrified also at the other end.
通电的电线就是带电的电线。
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