他是一位著名的科学家，他的理论将改变世界。
He is a famous scientist whose theories would change the world.
长期以来，科学家和工程师们都相信电池能够改变世界。
Scientists and engineers have long believed in the promise of batteries to change the world.
著名科学家亚历山大·弗莱明曾说：“当我在1928年9月28日破晓后醒来时，我当然没有打算通过发现世界上第一种抗生素给所有医药带来改变。但我想这正是我当时所做的。”
The famous scientist Alexander Fleming said, "When I woke up just after daybreak on 28th September 1928, I certainly didn't plan to revolutionize all medicine by discovering the world's first antibiotic. But I guess that was exactly what I did."
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