So if you want to ride a paramecium, go for it.

所以如果你想要驾驭草履虫，那就去吧。

So we would like to be able to build something like this, only down at the cellular scale, the size of a paramecium.

因此，我们也想研制出类似这样的机器人，只是小到细胞级，跟草履虫差不多。

If you wanted to see with your naked eye a paramecium swimming in a drop of water, you would have to enlarge the drop until it was some forty feet across.

要是你想用肉眼看到草履虫在一滴水里游，你非得把这滴水放大到40英尺宽。

The semiconductor industry has been getting better and better at making tinier and tinier devices, so at this point they could put something like a million transistors into the size of a package that is occupied by, say, a single-celled paramecium.

半导体行业正在使用越来越先进的生产工艺来制造越来越小型设备。现在，这些工艺可以把上百万个晶体管放入差不多一个单细胞草履虫那么大的空间里。