研究发现，一种可抵御抗生素、是耐甲氧西林金黄色葡萄球菌（MRSA）的超级细菌，是野生刺猬皮肤上的真菌和细菌相互斗争而自然进化出来的。Having discovered this strain of MRSA in dairy cattle a decade ago, scientists from the University of Cambridge wanted to know where it came from, and whether the use of antibiotics2 on farms had caused it to emerge.十年前，剑桥大学的科学家在乳牛中发现了耐甲氧西林金黄色葡萄球菌（MRSA）的这支菌株，他们想知道它来自什么地方，与在农场用抗生素是不是致使了它的出现。So, a team of biologists across Europe collected and examined more than a thousand samples of the bacteria taken from wild animals. Their painstaking3 genetic4 investigation5 revealed that the strain evolved on hedgehog skin more than 200 years ago in an evolutionary6 arms race with a common skin fungus7 that releases a natural antibiotic1.因此，来自欧洲各地的一个生物学家团队采集并检查了从野生动物身上采集的一千多个样本。经过潜心研究，他们的基因调查显示，200多年前，这支菌株是在与一种释放天然抗生素的一般皮肤真菌争相进化时，在刺猬的皮肤上演生出来的。But the researchers stress that while its crucial to understand the sources of antibiotic resistance in nature, our own overuse of antibiotics is the main driver of resistance in harmful bacteria.但研究职员强调，虽然知道自然界抗生素耐药性的来源至关要紧，但人类自己对抗生素的滥用才是有害细菌产生耐药性的主要驱动原因。
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1 antibiotic adj.抗菌的；n.抗生素 参考例句： The doctor said that I should take some antibiotic.大夫说我应该服些用抗生素。 Antibiotic can be used against infection.抗菌素可以用来预防感染。
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