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Nowadays,along with the development of the country economy,The benefits that computers bring are huge.We can look up information, entertain, listen to music, … through computer networks. The computer network helps us make friends with friends around the world without leaving home. Today some parts, especially teenagers, are becoming too dependent on computers, and becoming less exposed to the outside world. Young people are gradually dependent on the computer network and seeing it as their own life. Computer network brings us many benefits but also harms, so we need to use it effectively and in moderation.