匹兹堡大学精神病学比阿特丽斯·卢纳教授用神经影像研究青少年的大脑，用一个简单的测试阐述这个学术问题。
Beatriz Luna, a University of Pittsburgh professor of psychiatry who USES neuroimaging to study the teen brain, used a simple test that illustrates this learning curve.
你会看到，有几个简单的步骤，您可以创建真棒动态影像。
You will see that with a few easy steps you can create Awesome Motion Graphics.
很多电影制作者仍采用相对简单的程序—分层，即使用蓝色或绿色底色来分层并合成影像。
Most film makers still use a relatively simple process called matte layering, which involves using a blue or green screen to create images that can be layered to create a composite image.
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