名词
中文翻译：Unknown
同义词：
['penicillin', 'streptomycin', 'gentamicin']
例句：
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1. The doctor prescribed penicillin for her infection.
医生给她开了青霉素来治疗感染。
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2. Streptomycin is an antibiotic that can treat bacterial infections.
链霉素是一种抗生素，可以治疗细菌感染。
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3. Gentamicin is used to treat infections caused by gram-negative bacteria.
庆大霉素用于治疗由革兰氏阴性细菌引起的感染。