At your size of under 2 picometers, scale starts to lose its meaning.

在你矮于两皮米的身高下，尺度开始丧失意义。

If the train was moving at 150 kilometers per hour, it would contract by less than a picometer – that's 100th of the length of a hydrogen atom.

如果火车以每小时 150 公里的速度行驶，它会缩小不到 1 皮米——这是氢原子伸展的 100 皮米。