A human-scaled mockup of the Angry Birds world was created in a square in Barcelona.
在巴塞罗那的一个广场上建起了一个真人版的“愤怒的小鸟”模型。
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It manipulates human visual perception through the use of scaled objects and the correlation between them and the vantage point of the spectator or camera.
借助对象的缩放、对象与观众或照相机有利位置的关联性，它可以操纵人的视觉感知。
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However, as the more cautious of them admit, that cannot be verified until the animal experiments are scaled up to proper, long-term human studies which can verify their hypothesis.