disconnect是什么意思？

Was it because of the growing attraction of the Internet, video games and endless TV channels? Never disconnecting from work? No matter how it happened, millions of Americans are putting their health, quality of life and even length of life in danger.

Still, there's a huge disconnect between the way we currently train scientists and the actual employment opportunities available for them, and an urgent need for dramatic improvements in training programs to help close the gap.

My telephone was disconnected by the phone company.

Why his phone had been disconnected