Up the stairs, the elevator has been replaced by a high-speed elevator. In the corridor, the ground is also covered with marble. As soon as I got to the door, a doorbell rang automatically. Looking up, it turned out to be the result of infrared automatic sensing.

门开了，家里人都知道是我回来了，纷纷拥了上来。这个说说，那个讲讲，说我长高了，变帅了。进家以后，发现家里的好多东西都变了：电视换成了数字的，电脑连上了高速网，鼠标也变成了感应的，电视可以把屏幕上的图片投影到空气中，让图片看着不累眼，甚至还可以放大。

When the door opened, my family knew that I was coming back, and they all rushed up. This talk, that talk, that I grow up, become handsome. After entering home, I found that many things at home have changed: the TV has changed into a digital one, the computer has connected to the high-speed network, and the mouse has also changed into an inductive one. The TV can project the pictures on the screen into the air, so that the pictures can not be tired of looking at, or even enlarged.

我出去又逛了逛市场。以前的露天小摊都没了，地上的污水不见了，连清洁工也没有了。这是怎么回事呢？原来是地上的大理石可以吸水，能自动把污水吸干。

I went out and went to the market again. There were no open-air stalls, no sewage on the ground, no cleaners. What's going on? It turns out that the marble on the ground can absorb water and automatically dry the sewage.

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