(单词翻译:单击)
正文文本
These days the choice of face masks can be dizzying. So researchers at Duke Health set out to find which may work best, testing 14 different types with a simple experiment designed to visualize small particles or droplets sprayed during regular speech. Researchers said the same phrase. Stay healthy, people. First with no mask, note the flashes of light. Those are the tiny particles which could contain coronavirus. If everyone wore a mask that truly blocked these particles, we would reduce the spread of a transmissible disease like covid-19. No question about it.
Medical grade N95s and surgical masks both worked well to block particles. But masks with exhalation valves won't protect those around you. Cotton masks with several layers of material did well, not a lot of droplets got through. You don't need a perfect mask to reduce community spread. But bandanas and neck gaiters didn't fare well. In fact, researchers say they may result in more small particles than no mask at all. Bottom line, Lester, researchers say masks work if they have several layers of good fabric. If you can see through it, it's probably not doing you much good.
参考译文
如今,选择口罩是一件让人头疼的事
译文属可可原创,仅供学习交流使用,未经许可请勿转载
重点讲解
重点讲解:
1.get through通过
I think you can get through the first two chapters.
我想你能完成前两章 。
2.in fact实际上
His departure, in fact, went almost unremarked.
事实上,他的离去几乎没被注意到 。