单词：hexabromoacetone
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Simple New Test Detects Early Signs of Diabetes 新型简单测试或能检测出糖尿病早期迹象 People with Type 1 diabetes, usually diagnosed in children and young adults, must take insulin injections and watch their diet to keep their blood
VOA标准英语2015年(一月)
Air pollution outside is easy to spot, hanging over the city, or sputtering from a tailpipe. But there's lot of indoor air pollution, too, even if it's not as obvious. It's caused by volatile organic compounds, or VOCs. They can come from building ma
2016年Scientific American(八)月
Grammar Girl here. Today's topic is words that can get you into trouble. Guest-writer Bonnie Trenga writes: Once upon a time, some mistaken citizens stood up for American principals, p-r-i-n-c-i-p-a-l-s. Across the Atlantic, a nutty queen sat on her
英语语法 Grammar Girl
By Tendai Maphosa London 11 January 2008 A new study reveals that more African doctors and nurses are working abroad than at home, which it says is contributing to the worsening shortage of health care professionals in Africa. From London, Tendai Map
VOA标准英语2008年（一月）
Jonah Hex. Are these the boys you wanted? You surely have done us quite a favor. A transaction is all it was. I'll collect my hundred dollar bounty on them and be on my way. From Superman and Spider Man to Josie and the Pussycats, Hollywood has a lon
VOA标准英语2010年(六)月
Ethiopia will accomplish the construction at any cost whether donors continue funds or not. The giant Gibe III dam, now being built on the Omo River in southwestern Ethiopia is a boon for some, a problem for others. Supporters say it will provide ele
VOA标准英语2010年(九)月
By Weaver Carolyn New York 09 April 2007 Watch Global Medical Relief Fund A tiny organization based in New York City is making big changes in the lives of a few lucky children from around the world. The ten-year-old Global Medical Relief Fund has he
2007年VOA标准英语（四月）