单词：yadongensis
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[00:00.00]Unit 1 Word list top 2 [00:03.51]第一单元 单词表 第二部分 [00:07.03]She is from Canada. [00:08.32]她来自加拿大。 [00:09.61]her [00:11.31]她的 [00:13.01]where [00:14.80]在哪里 [00:16.59]from [00:18.10]从 [00:19.62]Can
北京仁爱英语
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
Palestinian Prime Minister Salam Fayyad, at a meeting Monday on the sidelines of the U.N. General Assembly, urged donor countries to make good on pledges to assist the Palestinian Authority. Only a fraction of the more than $7 billion promised at th
VOA标准英语2008年（九月）
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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