科学美国人60秒 SSS 2014-03-05
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 -Sixty Seconds Science. I'm Sophie Bushiwick. Got a minute?
During a physical exam, doctors pick up a lot from their patients, including that patient's bacteria. To keep infections from spreading, physicians try to always wash their hands between exams. But they don't always scrub 1 their stethoscopes. To see just how much bacteria these instruments gather, doctors examined 71 patients using stereo 2 stethoscopes and gloves. After each exam, researchers collected samples from the stethoscope surface and tube, as well as four parts of the positioned 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 stethoscope surface, which gathered more microbes than the palm or the backs of the hands. The study is in Mayo Clinic Proceedings 4. Although fingertips picked up more than 5 times as much bacteria stethoscope did, doctors reduce that contamination 5 before seeing the next patient by cleaning their hands. According to the study's authors, stethoscope should get the same treatment. Then, the only thing to fear is the stethoscope's 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.有立体视觉的，立体声的；n.固定形象，立体声
- She had the stereo on at full blast.她把立体声音响开到了最大音量。
- This program is being broadcast in stereo.这个节目正用立体声播放。
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。