标签：exhale 相关文章

科学美国人60秒 SSS Dogs Teach Bomb-Sniffing Machines New Tricks

Old Yeller was a great smeller. Dogs in general have superior smelling abilities. They detect dead bodies, illegal drugs and explosiveseven cancer. But dogs don't just have great olfactory gear. Another reason they're amazing chemical detectors? [sni

发表于:2018-12-24 / 阅读(52) / 评论(0) 分类 2016年Scientific American(十二)月

[科学美国人60秒] SSS 2015-11-16

Have you lost your ability to taste during a cold because your nose stuffed up? Thats because the nose is intimately involved with your taste. When you chew, flavor compounds from the food to the back of the mouth. And when you exhale, you cary some

发表于:2019-01-20 / 阅读(56) / 评论(0) 分类 2015年Scientific American(十一)月

英语听力文摘 English Digest 73、外科口罩的功效

Dohn,Surgical masks arent designed to protect you. Theyre designed to protect those around you from the germs you might be spreading, by blocking those droplets you shoot out when you sneeze or cough. Surgical masks also divert airflow so that you do

发表于:2019-01-26 / 阅读(47) / 评论(0) 分类 英语听力文摘 English Digest

英语听力文摘 English Digest 291、骆驼

Camels 骆驼,被称做为沙漠之舟,它能够忍耐干燥酷热的环境,并且可以在水源极其缺乏的浩瀚沙漠里长途跋涉,是人们沙漠之旅中不可缺少的伙伴.那么,人们是不是真的了解骆驼呢?曾经有两位美国科

发表于:2019-02-24 / 阅读(63) / 评论(0) 分类 英语听力文摘 English Digest
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