Researchers surmise that over billions of years the debris should collide, grinding the KBO-type objects down to ever smaller pieces that were not part of the original Kuiper Belt population.
研究人员推测数这些碎块经过数十亿年的互相碰撞，柯伊伯型天体磨得更碎，柯伊伯带原始状态不再。
2
Then the Philistines seized him, gouged out his eyes and took him down to Gaza. Binding him with bronze shackles, they set him to grinding in the prison.
非利士人将他拿住，剜了他的眼睛，带他下到迦萨，用铜链拘索他。他就在监里推磨。
3
But MND is relentless in its grindingdown of both patients and those close to them, and it's a shock from which it is not easy to recover.