Keep quiet! The boys lay down, looking through the holes in the wooden floor.
保持安静！男孩们躺下，透过木地板上的洞往外看。
2
"If black holes grow by merging, by combinations of black holes, they should spin down quite quickly," Blandford explains.
如果黑洞是依靠合并来成长的，在合并的过程中，他们的旋转速度很快就会变慢。
3
Because the crystal bends light much more strongly than air does, light should have bounced off the holes and traveled down a channel that had been left clear of holes.