青霉素以及此后发现的各种抗生素与预防注射一起并称医学界最重要的发现。

Penicillin and the other antibiotics that its discovery prompted stand alongside vaccination as the greatest inventions of medical science.

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在实验条件下曾用过青霉素、氯霉素、四环素和其它各种抗菌素（和或不和链霉素连用），得到某种程度成功。

Penicillin, chlorampheicol, tetracycline, and various other antibiotics with or without streptomycin have also been needed with some degree of success under experimental conditions.

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如果没有青霉素的话，许多人就会死于各种细菌性疾病，甚至会死于微小的创伤。

If penicillin had not been available, many people would have died from bacterial illnesses or even minor wounds.

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