Oh,the world is becoming smaller and smaller!!!!!!

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Most of us may have experiences:when you go to some place far away form the city you live in and think you know nobody there,you are surpriseed to find that you should run into one of your old classmates on the street!Perhaps both you would cry out:"What a small world!!" Why is the world getting smaller and smaller?For one thing,modern technology has made various means of transprotion more and more advanced.For another thing,with the development of modern society,people are making contact with one another more frequently.Everyday we must deal with a lot of people known or unknown to us before.The more advanced society,the more contact with others we make. It is true,I can meet my friends who are in different city or contries by internet.