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First, look at the screen for a long time will lead to eye fatigue, the passage of time will make eye myopia, so when using it, so that the eyes and the screen to maintain a certain distance, not a long time staring at the screen. Secondly, use it for entertainment, we may become addicted to the game, in the study can not concentrate attentionSo it's important to have fun.. Finally, in the learning too dependent on it, it will make us unable to take the initiative to learn, in my opinion, how the right use, d

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