科学美国人60秒:微生物群相伴我们终生-托福听力下载

　　科学美国人60秒中文翻译：

　　You might blame your pets for shedding all over the house. 你可能会怪自己的宠物把毛发弄得满屋都是。

　　But we humans do it too—and our stuff is alive. 但我们人类本身也是如此—而且我们所散发的这些东西都是活的。

　　We're constantly emitting microbes around us. 我们周围经常掉落微生物。

　　And this is coming from shedding of our skin, from exhaling, our hair, 这些微生物可能来自我们的皮肤、呼气及头发。

　　we're just full of these guys. 我们人类就是充满这样的微生物。

　　Adam Altrichter, a microbial ecologist at the University of Oregon. 美国俄勒冈大学的微生物生态学家亚当·阿特克特说道。

　　We've never been sterile organisms. 我们不是无菌生物。

　　We are definitely masses of microbes both in and on us. 我们体内以及体表都充满了大量的微生物。

　　If you're picturing the Peanuts character Pig Pen, you may not be far off. 如果你想象的是《花生》漫画里的角色猪圈，就距那个形象不太远了。

　　Because biologists estimate we shed a million particles an hour 因为生物学家估计人类每小时会有100万的微粒掉落,

　　including, of course, a lot of bacteria. 其中当然包括大量的细菌。

　　Altrichter and his colleagues wanted to measure that cloud of particles the Pig Pen effect, if you will, 阿特克特和他的同事想要对些猪圈效应颗粒进行测量，如果你也这样想的话，

　　so they asked 11 volunteers not to shower, dressed them in shorts and tank tops, and put them in a sterile chamber for hours at a time, 因此他们要求11名志愿者不洗澡、只穿上短裤和背心。并且在无菌室呆上几小时，

　　while collecting microbial samples on surfaces and in the air. 同时收集这些人体表及空气中的微生物样本。

　　What they found in those samples was a menagerie of bacteria from the volunteers' skin, guts, genital tracts, lungs, noses and mouths. 研究人员发现这些检测样本就是细菌的小型动物园，而细菌来自志愿者的皮肤、内脏、食道、肺部、鼻子、嘴巴。

　　And for eight of the 11 study subjects, the microbial cloud was unique enough to identify the individual who'd left it, 而11名志愿者中的8人中的细菌群非常独特，足以证明这些细菌出自哪里,

　　suggesting that this bacterial fingerprint could someday be used in forensics. 研究表明这些细菌指纹在某一天可以用于取证工作。

　　The study is in the journal PeerJ. 这项研究已经在《PeerJ》期刊上发表。

　　Given that we spend 90 percent of our lives indoors, 考虑到我们生命中90%的时光会在室内度过，

　　our microbial clouds also colonize the places we live and work, 因此我们的微生物团也会在我们居住及工作的地方生根发芽，

　　and, yes, the people around us. 而且，是的，我们周围的人身上也是如此。

　　And so it's just kind of interesting to think about how the people that we interact with at work, or in classrooms, or in other environments, 因此想到我们在工作地点、课堂及其他环境中接触到的人或物，

　　how we could be sharing some of these microbial passengers between us, not even knowing anything about it. 我们如何在一无所知的情况下同这些微生物过客打交道是很有趣的事情。

　　And now that you do know about it—hopefully your view of your coworkers won't become…clouded. 现在已经了解这种情况的你，希望不要戴有色眼镜去看待这些微生物。

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