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(单词翻译)
Since that time, scientists have found that numerous species of fungi1 produce chemicals to destroy bacteria and that bacteria even produce chemicals that destroy other bacteria. Antibiotics2 are relatively3 new in modern medicine, but the earliest medical records from China, Egypt, and Mesopotamia show that people have used moldy4 and fermented5 substances to treat wounds for over three thousand years. The ability to produce these chemical toxins6 may have evolved in bacteria as a survival tactic7. Today we use those same chemicals in our own struggle against bacteria.
收听单词发音
1
fungi
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| n.真菌,霉菌 | |
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2
antibiotics
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| n.(用作复数)抗生素;(用作单数)抗生物质的研究;抗生素,抗菌素( antibiotic的名词复数 ) | |
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3
relatively
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| adv.比较...地,相对地 | |
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4
moldy
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| adj.发霉的 | |
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5
fermented
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| v.(使)发酵( ferment的过去式和过去分词 );(使)激动;骚动;骚扰 | |
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6
toxins
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| n.毒素( toxin的名词复数 ) | |
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7
tactic
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| n.战略,策略;adj.战术的,有策略的 | |
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