D) It is a communication system via TV instead of a computer.

D) 是一个通过是脑的通讯系统。

The computer for him is a communication center, television, office, store, and music player.

他的脑是通讯中心、、公室、商店和音乐播放器。

It's hard to overstate how much we depend on electricity; it's not just the lights at home, it means no computers, no communication, no navigation.

很难概括我们怎样的依赖力；家里的灯，意味着没有脑，没有通讯，没有导航。

I couldn't tell you off the top of my head, but I have it in my contacts list on my computer. Can I send it to you later?

但是现在我未经深思熟虑，能确定（off the top of my head）。我脑里有份通讯录。我能晚点发给你么？