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PG-13 An endless army of shadow demons bent on the destruction of all reality swarms over our world and all parallel Earths. The only thing opposing them is the mightiest team of metahumans ever assembled. But not even the combined power of Superman, Batman, Wonder Woman, Green Lantern and all their fellow superheroes can slow down the onslaught of this invincible horde. What m...。曹冲称象是否准确呢？蚁穴真能让长堤毁于一旦？伏地为何能听声？《典故里的科学》第二季遵循第一季的复古实验、科技手段分析等创作原则，以“参与型纪录片”为主导模式，增强深度调查、历史溯源环节，用现实实验或动画进行深度解析，让历史典故更加有血有肉。。