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A piece of equipment----airconditioner Id like to talk about a piece of advanced equipment in my home, an air conditioner. My parents bought it in a department store when I was sixteen years old to replace the old one. I think it is interesting to use this equipment, just like magic. Because when we use it, it can change hot air to cold air. When we are cold, we also get warm by using it. I cant imagine what our life will be if we dont have it. Of course we dont use it all the time. Because when in spring or autumn, the weather is very comfortable, it isnt necessary to use it. If we use it all the time, it is not environmental friendly. Also, it is not good for our health if we stay in an air-conditioned room for a long time. When I feel very hot or cold outside, I will miss my air conditioner. | 
