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亚历山大·弗来明发现了一种药,他称之为青霉素。这种药现在已成为世界上最有名和最有用的药品之一。然而,正象许多光辉的发现一样,青霉素的发现也几乎是一件偶然的事情。
Alexander Fleming found a medicine he called penicillin. This medicine is now one of the most famous and useful medicines in the world. However, just like many brilliant discoveries, the discovery of penicillin is almost a coincidence.