The distance in kilometres from start to finish over max. 3 turn points will always be scored with a factor of 1.5. per kilometre.

距离公里数计算是按照从起点到终点，超过至少3个转弯点，在此情况下每公里1.5分。

youdao

So, sometimes people get confused when they're solving problems and call the amplitude this distance all the way from the max to the min but it's only half of that because we're only going back to the average level.

解题的时候会弄错，把这个从,最大值到最小值的距离,叫做幅值，但实际上,只有它的一半,只是它和平均值的差距。

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