单词：hortensis
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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
AMERICAN STORIES - Short Story: 'One Thousand Dollars' by O. Henry FAITH LAPIDUS: Now, the VOA Special English program, AMERICAN STORIES. (MUSIC) Our story today is called One Thousand Dollars. It was written by O. Henry. Here is Steve Ember with the
2011年VOA慢速英语(八)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
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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
Margaret was a small girl. She was a little girl. All her friends were taller than her. She was shorter than all her friends. She wanted to be tall. Her mom told her not to worry. One day Margaret would be tall. One day she would be taller than her f
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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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