科学美国人60秒 SSS 2014-03-07
时间：2019-01-20 作者：英语课 分类：2014年Scientific American(三)月
英语课
This is Scientific American 60 seconds science. I’m S. Buschwik. Got a minute?
During a physical exam, doctors pick up a lot from their patients including patients bacteria. To keep infections from spreading, physicians try to always wash their hands between exams. But they don't always scrub 1 their stereoscopes.
To see just how much bacteria these instruments gather, doctors examined seventy one patients, using sterile 2 stereoscopes and gloves. After each exam, researchers collected samples from the stereoscope surface and tube, as well as four parts of the physicians gloved hands: the fingertips, backs, and two locations on the palm.
The fingertips became by far the most bacterially contaminated 3. But the runner-up was the stereoscope surface, which gathered more microbes than the palms or the backs of the hands. The study is in Mayo Clinic Proceedings 4.
Although fingertips picked up more than five times as much bacteria as stereoscopes did, doctors reduce that contamination 5 before seeing the next patient by cleaning their hands. According to the study authors, stereoscopes should get the same treatment. Then the only thing to fear is the stereoscopes icy temperature.
n.用力擦洗，矮树，渺小之物；v.用力擦洗
- I got paint on my hands and it won't scrub off.我手上沾上了油漆，擦不掉。
- The great plain was covered in scrub and small lifeless trees.浩瀚的平原覆盖着灌木和毫无生气的矮小树林。
adj.不毛的，不孕的，无菌的，枯燥的，贫瘠的
- This top fits over the bottle and keeps the teat sterile.这个盖子严实地盖在奶瓶上，保持奶嘴无菌。
- The farmers turned the sterile land into high fields.农民们把不毛之地变成了高产田。
把…弄脏，污染( contaminate的过去式 )； 玷污，毒害，腐蚀（人的思想或品德）
- The drinking water has become contaminated with lead. 饮用水被铅污染了。
- The site was found to be contaminated by radioactivity. 发现此地受放射线污染。
n.进程，过程，议程；诉讼(程序)；公报
- He was released on bail pending committal proceedings. 他交保获释正在候审。
- to initiate legal proceedings against sb 对某人提起诉讼
n.污染
- We must ensure our children against contamination by bad ideas. 我们必须保护我们的儿童不受坏思想的侵蚀。
- There is a danger of serious contamination from radioactive waste. 放射性废弃物有严重污染的危险。