If we go down the small pathway a little bit farther, we're entering the era of nanomedicine, the ability to make devices super small to the point where we can design red blood cells or microrobots that will monitor our blood system or immune system, or even those that might clear out the clots from our arteries.
如果在这条小路上走得稍微远一点， 我们将来到纳米医学时代， 能将装置做得超小 小到我们可以设计血红细胞 或者微型机器人来监测我们的血液系统或免疫系统， 或者甚至清除动脉里的血栓。