Within a few years the whole country will switch over to digital television.

几年内全国将会换上数字电视。

Considered to be a less dangerous alternative to tobacco, "e-cigarettes" are taking over the West as more and more people switch over when trying to kick the habit.

随着越来越多的人开始戒烟，被认为危险程度更小的替代物——电子烟在西方国家流行起来了。

Do you mind if I switch over?

我想换个频道你介意吗？

Switch over to MBX.

切换到MBX。

He can switch over from English to German.

他可以很流利地从讲英语转到德语。