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So the shorthand is five parents of four children in three states. 五位父母，生了四个孩子，生活在三个不同的州。 And there are people who think that the existence of my family somehow undermines or weakens or damages their family
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Science and technology 科学技术 Three-dimensional printing 3D印刷 An image of the future 印刷未来 One of the biggest manufacturers in the world gives 3D printing a go 世界龙头机器制造商用3D印刷术进行了一次格外成功的应用
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Creating Colors There are two ways to create colors in a photograph. One method, called additive, starts with three basic colors and adds them together to produce some other colors. The second method, called subtractive, starts with white light (a mi
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