Some minerals, such as calcium carbonate in seashells, glow blue, as does a shovel handle in the picture above.
有些矿物，如海贝中的碳酸钙，会闪着蓝光，就如同上图中的铁锹的把手。
Under UV light, clean sand appears purple or black. Some minerals, such as calcium carbonate in seashells, glow blue, as does a shovel handle in the picture above.
紫外线照射下，干净的沙子呈紫色或黑色。有些矿物，如海贝中的碳酸钙，会闪着蓝光，就如同上图中的铁锹的把手。
When night falls, red and blue and other colors cast a hazy glow over a city lit up by tens of thousands of neon signs.
当夜幕降临时，红色、蓝色和其他颜色为这座被成千上万个霓虹灯指示牌点亮的城市蒙上了一层雾蒙蒙的微光。
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