单词：rhus chinensis roxburghiana
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Investigating the Crash of Asiana Airlines Flight 214 From VOA Learning English, this is In The News. American investigators this week examined wreckage from the Asiana Airlines passenger jet that crashed last Saturday at San Francisco airport. Offic
2013年VOA慢速英语(七)月
As you've probably experienced firsthand, some mosquito species have a real taste for warm, human blood. So much so that if you raise them on it the lab, they'll accept no substitute. Fortunately, I don't get major reactions at all. Brad Main is a mo
2016年Scientific American(九)月
Photo taken on July 8, 2013 shows a picture of Wang Linjia (R) and Ye Mengyuan on a mobile phone, at Jiangshan Middle School in Jiangshan, east China's Zhejiang Province. Two Chinese passengers, Wang Linjia and Ye Mengyuan, were killed in a crash lan
世界各地新闻集锦
ROME, Dec. 3 (Xinhua) -- Italy lacks the necessary energy(能量,活力) and strength for an economic revival while unemployment and poverty are on the rise, warned a report issued Friday. The 44th edition of the Censis think tank social survey, the
英语新闻
In Africa's battle against malaria, two low-tech tacticsinsecticides and bed netshave done a decent job killing off mosquitoes. But it's mainly one species that's been affected. That's a species called Anopheles gambiae, sometimes called the African
2016年Scientific American(八)月
You might not think there would be that many people in the world prepared to devote lifetimes to the study of something so inescapably low key, 你或许会认为，世界上不会有多少人愿意花毕生的心血来研究那个不起眼儿的东西
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