1、 Computers can injure you. 电脑会伤害到你。Most other
injuries happen suddenly. For example,if you fall off a bike and
break your arms,it happens very quickly. But computer injuries电
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happen slowly.
You probably know how to ride a bike safely. Now learn to
use a computer safely.
Your eyes
Too much light can injure your eyes,so never sit too close to
a computer screen. Your eyes should be at least 50cm from the
screen. Remember to look away from it sometimes. This gives
your eyes a rest.
When you use a computer, the window should be on your
left or your right. If it is behind you, the light will reflect on (反射)
the screen. If the window is in front of you, the sun and the
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