I'd like to talk about some other technologies out there, just technologies on our radar -- and I'll use this lens, these four, as a way to kind of tell you where each one of those technologies is in its development.
我再想说一下另外一些技术， 我们一直关注的一些技术，我将用这个视角， 这四个发展阶段，来告诉你 每一种技术在发展的哪个阶段。