单词：crossorhombus howensis
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Yussouf was a sheik. He was sitting at the door of his dent in the desert. It was night. Nothing was visible in the desert. The only light was the light that came from the starts in the sky. They were twinkling in the sky. The sheik was sad at heart.
英汉幽默故事选读
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
President Obama is urging world leaders whore meeting in Washington today to act and not just talk about safeguarding nuclear materials. NPRs Scott Horsley has more. President Obama called nuclear terrorism one of the greatest threats to global secur
2010年NPR美国国家公共电台4月
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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