例句：
Digital television has been around for some time now.
数字电视已经面市一段时间了。
With digital you can choose the camera angle you want.
有了数字电视你就可以选择你所需要的摄像角度。
How long have you had digital?
你们有数字电视多长时间了？
No conversion from analogue to digital data is needed.
没有必要把模拟转换为数字数据。
The definition of the digital TV pictures is excellent.
数字电视图像的清晰度很高。