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我们知道,光在空气中是沿直线传播的,那么,能不能让光不沿直线传播呢?同学们,你有兴趣吗?让我们用实验来探究一下这个问题吧.
We know that light travels in a straight line in the air, so can we not allow light to travel in a straight line? Students, are you interested? Let us explore this problem with experiments.