The quick succession of strokes is what causes the lightning channel to flicker.
接二连三的快速闪击，则是使闪电通道闪烁的主因。
That is why the subsequent lightning that follows the completed channel often strikes a tall structure.
这就是接下来那些通过这条完整通道的闪电往往会击中高层建筑的原因。
Then a strong current of electrons follows that path from the cloud to the ground, and it is that current that illuminates the channel as the lightning we see.
然后一股强大的电子电流沿着这条路径，从云层到达地面，正是这种电流像我们看到的闪电一样照亮了通道。
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