六级And the reality is that antibiotics have been responsible for saving millions of lives since penicillin, one of the earliest antibiotics, was first used on a clinical basis 70 years ago.
而事实是,自从70年前青霉素(最早的抗生素之一)首次在临床上使用以来,抗生素就已经拯救了数百万人的生命。
2017年6月听力原文
考研Sir Alexander Fleming did not, as legend would have it, look at the mold (霉) on a piece of cheese and get the idea for penicillin there and then.
正如传说中的那样,亚历山大·弗莱明爵士并没有看模具(霉) 在一块奶酪上,然后马上想到青霉素。
1994年全国硕士研究生入学统一考试英语试题
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