单词：hypermutator state
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She inspected the carpet for small items. She saw a paper clip and a rubber band. She picked them up. She put them into a little box on the kitchen counter. She plugged in the vacuum cleaner. She turned on the switch. The cat ran out of the room. She
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Each year, millions of people visit the 4,570-meter-high Baishui Glacier in southern China. Scientists say it is one of the worlds fastest-melting glaciers. The huge body of ice is in the southeastern edge of a Central Asian region called the Third P
2018年VOA慢速英语(十)月
Oliver went to Target to buy a new vacuum cleaner. The vacuum cleaners at Target cost $60 to $500. The expensive ones were too bulky and, of course, too expensive. He bought the cheapest one in the store: a Dirt Devil Vibe. Its label claimed that it
365个英语简短小故事
This is Scientific American 60-Second Science. I'm Cynthia Graber. This will just take a minute. The fridge is one of your home's biggest energy hogs. Better insulation can make refrigerators much more efficient. And a panel encasing a vacuum is one
Scientific American(五)月
ENVIRONMENT REPORT - November 15, 2002: Snow Melting on Mount Kilimanjaro By Cynthia Kirk This is the VOA Special English ENVIRONMENT REPORT. A new study says ancient snow on top of Mount Kilimanjaro
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By Paul Sisco Washington, DC 24 May 2006 watch Melting Poles report NASA scientists, working with 10 years of satellite data, find a dramatic thinning of ice around the edges of Greenland, and Antarctica too. satellite view of earth Using satellite
2006年VOA标准英语（五月）