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Ann Bella Y:大家好。我是杨晨。欢迎到美语咖啡屋。 J: Hello everyone! I'm Jody. Welcome to American Cafe! Y: 我们今天要为您讲一个非常感人的故事。 J: It is a very movi
2017年NPR美国国家公共电台12月
Doctors use X-rays to view internal organs, obtain clear images of possible disease and to treat cancer. For years radiation has been used to save lives, but there is growing concern that some patients are getting more than they ask for when they und
VOA标准英语2010年(一月)
National security officials are in high alert, we have more on that in a minute. But today we also learn there are new concerns about what we felt was one of the most sophisticated tools out there that keep terrorists off planes. Our chief investigat
万花筒2011年
AS IT IS 2016-09-14 After Death, Some Choose to Continue Their Online Lives What happens to our images on social media or the internet after we die? Evan Carroll is someone who thinks a lot about this question. Carroll co-wrote a book called, Your Di
2016年VOA慢速英语(九)月
There is a new technology that could help crime scene investigators solve cases faster. Our own Dr. Sanjay Gupta is actually a crime scene investigator. I don't know what is it you don't do Sanjay, i gotta tell you. You are at the land this morning,
访谈录
Compared to the dose level of a medical chest x-ray, a backscatter scan is thousands of times lower. Since the Christmas Day attempted bombing of a U.S. airliner, airports are looking for ways to tighten security. One method being adopted by some and
VOA标准英语2010年(三月)