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

D) 这是一个过电视而不是电脑系统。

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

他电脑是中心、电视、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.

很难概括我们依赖电力；这不仅仅家里灯，这意味着没有电脑，没有，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，不能确定（off the top of my head）。我电脑里有份录。我能晚点发给你么？