但这些音乐厅的内墙都有很多装饰，很多水泥装饰物，比如雕像，这些装饰物能有效传播声音，从不同方向反射声音。
But they all have a lot of decorations on the walls inside, lots of ornamental plasterwork like statues, which distribute sound very efficiently, reflecting it in all different directions.
传播光明的方法有两种：要么做一根蜡烛，要么做一面镜子去反射它的光芒！
There are two ways to spreading light :to be the candle or the mirror that reflect it !
由于晶体比空气更能弯曲光线，光会从小孔上反射回来，从而沿着没有小孔的通道传播。
Because the crystal bends light much more strongly than air does, light should have bounced off the holes and traveled down a channel that had been left clear of holes.
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