段斐每次凝神仰望天空的时候,都会在云层的深处发现一道犹如被利刃划过的裂痕。虽然它和喷气式飞机经过天空时留下的“飞机线”很相似,但每次段斐总能准确地将它找出来。每次凝视它的时候,段斐的大脑就会沸腾:——天空怎么会有裂痕?——人能从那道裂痕里钻过去吗?——裂痕外面是什么? Duan Fei each time looking up at the sky when the sky, will be found in the depths of the clouds like a sharp blade across the cracks. Although it is similar to the “airplane line” left behind when a jet passes through the sky, it is always possible to find it accurately each time. Every time you gazed at it, Duan Fei’s brain boiled: - How could the sky crack? - Can anyone drill through that fissure? - What’s outside of the crack?