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这种效果在物理学上被称为「朗伯余弦定律」（Lambert’s Cosine Law），其核心特征就是无论从哪个角度观察，屏幕的亮度看起来都是一样的。
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Animation: Jacqui VanLiew; source images: Getty Images
“I tried to answer the questions to the best of my ability, but I may have misspoke at times,” Kaley said of her deposition.
compatibility behavior, we could still make a normal breaking change.