I like digital products. It is advanced and convenient. For example, nowadays our family has a digital camera. We can take pictures whenever we want. We have taken many photos about our life. But in the past, if we want to take pictures, we have to go to the photographic studio. It is inconvenient and expensive. So we only take photos once a year. This is one classical example. There are many similar examples. 
我喜欢数码产品。它们先进、方便。举个例子，我们家现在有一个数码相机。我们什么时候想照相都可以。这相机记录了我们生活中很多的点点滴滴。但是，过去，如果我们想拍照，我们只能去影楼。一点都不方便也很贵。所以我们每年只拍一次照片。这是一个典型的例子。很有很多类似的呢。

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