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单词 Fleming, Sir Alexander
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Fleming, Sir Alexander

Sir Alexander FlemingFleming, Sir Al·ex·an·der /ˌælɪɡˈzɑːndə $ -ˈzændər/  
(1881–1955) a British scientist who discovered penicillin, a substance that is used as a medicine to destroy bacteria (=very small living things related to plants, some of which cause disease)
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更新时间:2025/1/24 21:03:27