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This is Scientific Americans 60-Second Science, I am Cynthia Graber .This will just take a minute. How can we improve engines, inhalers and fire extinguishers? Maybe by copying a beetle. The bombardier beetle's name might scare off predators if they
Scientific American(四)月
By Carol Pearson Washington 22 August 2007 High blood pressure, or hypertension, is a disease usually associated with adults, but children can get it too and can have serious health problems because of it. A new study is now calling for pediatricians
2007年VOA标准英语（八月）
Fukushima Plant Operator: Nitrogen Pumping Operation Going Well A plan to inject nitrogen into the containment vessel around reactor 1 at the Fukushima Daiichi power plant appears to be working, the plant owner said Thursday. Higher pressure levels h
VOA标准英语2011年(四月)
A new survey shows you're not paying any more the gas pumped than you were three weeks ago. Good news since late May. Motorists aren't paying any more for gas, but not paying any less either, accordin
商业报道2006年
By Melinda Smith Washington 12 September 2007 A recent study indicates that a disturbing number of American children with high blood pressure go undiagnosed. The study has prompted discussion worldwide about whether hypertension among children is jus
2007年VOA标准英语（九月）
世博会开幕这几天一直高温不下，仅5月1、2日两天世博园区救护车出动就达到80多次，其中接诊的26个人是中暑。中暑的英文怎么说呢？大家都知道stroke，中风，而中暑就是heat stroke。 那么，中
英语口语