Scientists have restored some brain functions in pigs four hours after the animals were decapitated, a breakthrough that could advance neuroscience but which raises ethical questions about the line between life and death.
科学家在猪被杀4小时后恢复了猪脑的一部分功能，这一突破有望推进神经科学，但引发了关于生与死之间界线的伦理问题。
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